US2949589A - Microwave communication lines - Google Patents
Microwave communication lines Download PDFInfo
- Publication number
- US2949589A US2949589A US509803A US50980355A US2949589A US 2949589 A US2949589 A US 2949589A US 509803 A US509803 A US 509803A US 50980355 A US50980355 A US 50980355A US 2949589 A US2949589 A US 2949589A
- Authority
- US
- United States
- Prior art keywords
- conductor
- surface wave
- dielectric
- coating
- cavities
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/10—Wire waveguides, i.e. with a single solid longitudinal conductor
Definitions
- This invention relates to microwave communication lines and more particularly to relatively short lines such as connecting a microwave transmitter to the station equipment.
- One of the objects of the invention is to provide a communication line for extremely high frequencies of the order of 5,00() megacycles and more which is substantially independent from atmospheric iniiuences such as humidity, ice and snow, and at lthe same time simple in construction and eicient in operation.
- a more specific object of the invention is a communication system including a surface wave transmission line connecting appropriate receiving and transmitting elements and having a dielectric coating of a general or overall thickness extending substantially beyond the region of maximum intensity of lthe surface wave field but of a general or overall dielectric consent which is of the order of the surrounding atmosphere or at least not substantially higher.
- Another object of the invention is a surface wave conductor having a dielectric coating or" a substantially discontinuous type of structure, consisting of an outer shell arranged at a distance beyond the region of maximum intensity of the surface wave iield and surrounding a number of hollow spaces arranged regularly or irregularly between the outer shell and the conductor surface thereby reducing the overall dielectric constant of the dielectric coating to a minimum.
- Still another object of the invention is to provide a cellular type of dielectric coating on the surface wave conductor.
- a further object of the invention is to combine a dielectric coating having an outer shell extending beyond the region of the maximum intensity of the surface Wave field, with an inner coating arranged directly on the surface of the surface wave conductor but of a thickness which is small against -the diameter of the region of maximum intensity of the surface waves to be transmitted.
- Fig. l shows in cross section a surface wave conductor embodying certain features of the invention.
- Figs. 2 and 3 in front and side cross sectional views respectively, show modifications of Fig. l.
- Fig. 4 illustrates diagrammatically a complete surface wave transmission system in accordance with the invention.
- Figs. 5 and 6 in cross section side view respectively, represent another type of surface wave conductor in accordance with this invention, and especially suited for relatively short distance microwave communications, for example, antenna lines.
- Figs. 7 and 8 represent cross sections of modiiica tions of the structures shown in Figs. 5 and 6.
- Figs. 9 and l0 in cross section and side View respectively, represent another embodiment of the invention, especially applicable to long distance communication lines, and relatively ⁇ low microwave frequencies.
- l is a copper wire of No. 16 gauge adapted for example to transmit a microwave frequency of say 10,000 megacycles.
- surface wave conductor 1 is provided with a discontinuous type of polyethylene coating 2 which is of a radial dimension substantially greater than the wave length or lengths concerned, or which extends at least beyond the region of maximum intensity of the surface wave field surrounding the conductor surface.
- the overall dielectric constant of coating 2 is held sufficiently low, not higher or not substantially higher than the dielectric constant of the atmosphere surrounding the surface wave conductor.
- the dielectric coating is shown to consist of an outer shell or wall S of a diameter extending substantially beyond the region of maximum surface wave iield intensity, or at lleast beyond a region of wave length dimension of the surface wave iield.
- Outer shell 3 is maintained in this position by a number of radial walls schematically indicated at 4 between which hollow spaces or cavities S are formed.
- Radial walls 4 are supported directly on the outer surface of conductor 1 or, alternatively, as also shown in Fig. l on a thin enamel layer 6 of a dimension which is small against the operating wave length range and therefore does not substantially courtibute to field attenuation while at the same time serving to protect and deiine the outer surface of the conductor in a predeterminedly controllable manner.
- cavities or cellular spaces 5 are shown to be filled with substantially the same gas, in this case air such as would exist in the atmosphere surrounding the outer wall 3, which need not be perfectly continuous but only suicient to keep the disturbing atmospheric or other elements at the proper dis-tance out of the maximum field strength region.
- air such as would exist in the atmosphere surrounding the outer wall 3, which need not be perfectly continuous but only suicient to keep the disturbing atmospheric or other elements at the proper dis-tance out of the maximum field strength region.
- cavities 8 may be so arranged that they do not extend continually and in the same direction throughout the entire length of the conductor surface but only over predetermined short lengths 9, 10, as apparent from Fig. 3 which are separated from each other by walls 11 extending perpendicular to the axis of the surface wave conductor and which are angularly displaced with respect to each other so as to present a better distribution or homogenization of the dielectric constant over the entire length of the surface Wave conductor of say several thousand foot length. This especially applies to antenna lines in which the invention is believed to be of particular advantage.
- gases of lower dielectric constant are Well known in the art, for example, lhydrogen or helium; and to enclose such gases into dielectric cavities made of rubber, polyethylene or yany other thermosetting plastic or extrusion material is Well known and need not be explained in detail.
- One of the simplest ways of achieving such gas enclosures of predetermined dimensions and gas content is to form or extrude the plastic in such a gas atmosphere or at least to add to the extrusion liquid or solution the desired gas content in a form in which during the extrusion process it will either be formed or exist at the moment of extrusion at the desired portions of the extrusion structure.
- Figs. 2 and 3 show a direct application of the low dielectric constant coating on a surface Wave conductor it has been found useful to provide in addition to such coating a continuous density type of rather usual and relatively high dielectric constant but of a thickness which is small against the wave length contemplated or at least small as compared to the diameter of the region of maximum intensity of the surface wave field.
- intermediate coating 14 is an enamel coating and serves not only to concentrate the wave field to the required dimensions lbut at the same time to protect the outer surface of the surface wave conductor itself against atmospheric or mechanical attack or any other influences affecting the surface wave field.
- the inner shell 6 may replace the immediate dielectric layer or alternatively may be added to enhance protection and definition of the outer conductor surface.
- cavities such as shown in Figs. 1, 2 or 3 in more or less regular or symmetrical array around and along a surface wave conductor of appropriate dimensions, such cavities may be arranged in an irregular or asymmetrical manner with more or less equivalent effect on the overall dielectric constant of the dielectric coating.
- dielectric coating 15 surrounding an enameled coated surface wave conductor 16 is of a dimension substantially exceeding wave length dimension or at least the region of maximum intensity of the surface wave eld and including a number of irregularly arranged cavities or pores thereby reducing the relatively high dielectric intensity of the coating material itself to the relatively low value approximating the dielectric constant of air, in accordance with the invention.
- foam rubber or foam polyethylene or any other foam type dielectric can be used in accordance with the invention.
- the pores can be arranged to be iilled with air or any other relatively low type dielectric constant gas in otherwise Well-known manner.
- the discontinuous type of foam rubber structure does not extend uniformly across the entire length of the surface wave conductor extending from antenna 17 to transmitter station l17' but is interrupted periodically through relatively short but relatively densely or continuously structurized dielectric portion 18, which in 4this particular case may consist of relatively less porous, or unporous polyethylene, polystyrene or any other thermostatic plastic.
- These relatively hard or rigid portions of .the dielectric coating surrounding the surface wave conductor may serve as supporting points or portions for the entire surface Wave conductor line, to hold ⁇ for example nylon strings 19 depends from cross arms 20 of poles 21.
- a surface wave conductor 22 enamelled or otherwise protected in otherwise well known manner, or also unprotected as the case may be, is provided with a foam or sponge type polyethylene coating 23, removing the influence of rain or ice as far as possible from the high intensity region of the surface wave field surrounding conductor Z2.
- a cylindrical balloon-like structure made of liexible and preferably elastic dielectric material such as rubber schematically indicated at 24.
- Structure 24 can be inflated by pumping a gas, such as air, therethrough.
- deated condition structure 24 is indicated by dotted line 24.
- Inilation of structure 24 to shape 24 will produce a mechanical movement removing the ice partially or completely or at any rate removing the ice to a distance which is far out of the region of high intensity of the surface wave eld created by conductor 22.
- land 6 structure 24 is formed into threeor more-compartments 25 having side walls 26 which assure proper centrifugation around dielectric coat 23.
- the various compartments 25 are shown to extend spirally around dielectric coating 23 -and as -a result deformation of the balloon-lilas structure 24 will not only occur in a direction radial with respect to the surface wave conductor, but also in a direction longitudinal to that conductor, and as a result the balloon-like structure will be subjected to twisting movements which will enhance de-icing.
- the balloon-like structure is applied directly at 27 around a surface wave conductor 28.
- a surface wave conductor 29 is provided with a foam polyethylene coating 30 which is provided with la number of longitudinally or spirally extending channels 31.
- Such channels may serve to carry hot air or an anticfreeze liquid reducing icing to a minimum.
- the entire dielectric crating 30, and especially its surface will be subjected to movements causing de-icing, or at least preventing or reducing the formation of ice to a minimum.
- Additional heating can be applied in all of the embodiment of Figs. 1 through 10 to prevent or reduce interior icing or at least reduce internal condensation to a minimum.
- the electric heat required in the case of Figs. 1 to 8 is relatively small and may be held substantially below the temperature affecting the structure or efficiency of the insulating coating of the surface wave conductor, such as polyethylene, since the principal de-icing operation is taken over by the balloon-like structure or inflatory movements.
- a surface wave conductor schematically indicated at 32 is provided with a number of relatively high heat conducting but -still well insulating rings, cylinders, discs or the like, in a pearl string-like fashion as schematically indicated at 33, and consisting Ifor example of steatite.
- thermosetting plastic In this way it is possible to heat the structure to a much higher temperature than that possible with polyethylene or a similar type of thermosetting plastic, and yet at the same time to obtain a good conduction of the heat to the outside.
- an outer polyethylene cover tubing 34 is provided which by proper means such as a plastic filler 35, can be extended into the interstices between rings 33.
- Rings 33 can also be made of ferrites to increase the electric eciency of the line.
- the invention is particularly applicable to high microwave frequencies or to frequencies in which water, snow and ice and other deposits on the surface wave conductors are of Wave length or eld affecting dirnensions, the invention is not limited to any particular frequency in this frequency range, nor is it limited to the particular form, structure or type of dielectric, cells or cavities but may be applied in any form or manner whatsoever without departing from the framework of this disclosure.
- a microwave communication system means for launching surface waves at a predetermined wave length range, means for receiving said surface waves, and a surface Wave transmission line connecting said launching and receiving means including a longitudinal conductor including ⁇ a dielectric layer exposed to the atmosphere and having an outer surface spaced from the conductor surface at a distance of the order of one wave length of said wave length range whereby said dielectric surface lies beyond the region of maximum intensity of the surface wave field; ⁇ and a num-ber of gas filled cavities in said dielectric layer between said outer surface and said conductor surface so distributed as to produce a dielectric constant of an overall value not substantially different from that of the atmosphere surrounding said layer; both said layer and cavities extending substantially over the entire length of said line as exposed to said atmosphere.
- said conductor surface is formed of a ⁇ dielectric layer of relatively high dielectric constant and of a thickness which is small relative to wave length.
- the dielectric layer consists of a number of cylinders iarranged over said conductor in pearl-string fashion.
- System according to claim 10 comprising means including a thermosetting plastic for iilling at least a portion of the interstices between said cylinders.
Description
Aug. 16, 1960 T. HAFNER 2,949,589 MICROWAVE COMMUNICATION LINES Filed May 20, 1955 IN V EN TOR. T/l'Q/IE HAFNE R lud MICRWAVE COlVIM'UNICATION LINES Theodore Hafner, New York, NY., assignor to Surface Conduction Inc.
Filed May 20, 1955, Ser. No. 509,803
12 Claims. (Cl. S33-95) This invention relates to microwave communication lines and more particularly to relatively short lines such as connecting a microwave transmitter to the station equipment.
One of the objects of the invention is to provide a communication line for extremely high frequencies of the order of 5,00() megacycles and more which is substantially independent from atmospheric iniiuences such as humidity, ice and snow, and at lthe same time simple in construction and eicient in operation.
A more specific object of the invention is a communication system including a surface wave transmission line connecting appropriate receiving and transmitting elements and having a dielectric coating of a general or overall thickness extending substantially beyond the region of maximum intensity of lthe surface wave field but of a general or overall dielectric consent which is of the order of the surrounding atmosphere or at least not substantially higher.
Another object of the invention is a surface wave conductor having a dielectric coating or" a substantially discontinuous type of structure, consisting of an outer shell arranged at a distance beyond the region of maximum intensity of the surface wave iield and surrounding a number of hollow spaces arranged regularly or irregularly between the outer shell and the conductor surface thereby reducing the overall dielectric constant of the dielectric coating to a minimum.
Still another object of the invention is to provide a cellular type of dielectric coating on the surface wave conductor.
A further object of the invention is to combine a dielectric coating having an outer shell extending beyond the region of the maximum intensity of the surface Wave field, with an inner coating arranged directly on the surface of the surface wave conductor but of a thickness which is small against -the diameter of the region of maximum intensity of the surface waves to be transmitted.
These and other objects of the invention will be more fully understood from the drawings annexed herewith, in which Fig. l shows in cross section a surface wave conductor embodying certain features of the invention.
Figs. 2 and 3, in front and side cross sectional views respectively, show modifications of Fig. l.
Fig. 4 illustrates diagrammatically a complete surface wave transmission system in accordance with the invention.
Figs. 5 and 6 in cross section side view respectively, represent another type of surface wave conductor in accordance with this invention, and especially suited for relatively short distance microwave communications, for example, antenna lines.
Figs. 7 and 8 represent cross sections of modiiica tions of the structures shown in Figs. 5 and 6.
Figs. 9 and l0 in cross section and side View respectively, represent another embodiment of the invention, especially applicable to long distance communication lines, and relatively `low microwave frequencies.
In Fig. l, l is a copper wire of No. 16 gauge adapted for example to transmit a microwave frequency of say 10,000 megacycles.
In the past it has been found that at such high frequencies a surface wave conductor requires very little if any insulation or surface deformation to produce the relatively small diameter Wave iield extending substantially parallel to the conductor and enclosed substantially in a cylindrical region of wave length dimension surrounding the conducting surface.
General theory and practice of such surface wave conductors and appropriate systems therefore are disclosed in U.S. patent specification No.v 2,685,068, tiled by G. J. E. Goubau.
However, at very high frequencies, especially of the order as contemplated in this disclosure, water drops or layers, ice layers or any other atmospheric deposits on the conductor surface are apt to disturb the surface wave field especially if they are of the order of Wave eld dimension in view of the relative smallness of the surface wave eld.
As a result the surface wave field becomes unduly attenuated, standing waves result and undesired radiaftion -Will occur.
In accordance with the invention, surface wave conductor 1 is provided with a discontinuous type of polyethylene coating 2 which is of a radial dimension substantially greater than the wave length or lengths concerned, or which extends at least beyond the region of maximum intensity of the surface wave field surrounding the conductor surface.
At the same time by providing of low dielectric discontinuities in the polyethylene coat-ing, the overall dielectric constant of coating 2 is held sufficiently low, not higher or not substantially higher than the dielectric constant of the atmosphere surrounding the surface wave conductor.
In this way, losses in the dielectric coating due to un-v desired wave field concentration, especially in the region of maximum intensity immediately surrounding or adjacent to the surface of conductor 1 are reduced to a minimum. Simultaneously, the accumulation of water, ice, and any other eld distorting or obstructing atmospheric elements are placed substantially beyond the region of maximum iield intensity.
l-n the realization of the invention of Fig. l, the dielectric coating is shown to consist of an outer shell or wall S of a diameter extending substantially beyond the region of maximum surface wave iield intensity, or at lleast beyond a region of wave length dimension of the surface wave iield. Outer shell 3 is maintained in this position by a number of radial walls schematically indicated at 4 between which hollow spaces or cavities S are formed.
This arrangement of elements 3, i and 5, results in a dielectric structure of an overall dielectric constant which, if anything, is only slightly higher than that of atmosphere surrounding outer shell 3.
Radial walls 4 are supported directly on the outer surface of conductor 1 or, alternatively, as also shown in Fig. l on a thin enamel layer 6 of a dimension which is small against the operating wave length range and therefore does not substantially courtibute to field attenuation while at the same time serving to protect and deiine the outer surface of the conductor in a predeterminedly controllable manner.
In Fig. l, cavities or cellular spaces 5 are shown to be filled with substantially the same gas, in this case air such as would exist in the atmosphere surrounding the outer wall 3, which need not be perfectly continuous but only suicient to keep the disturbing atmospheric or other elements at the proper dis-tance out of the maximum field strength region.
However, the invention is not limited to this specific arrangement.
Alternatively, complete enclosure of the cavities 2 may be provided as apparent from the modification of the invention shown in the different cross sectional views of Figs. 2 and 3.
In this case, in addition to the outer shell 3 there is provided an inner shell 6 of a dimension which is rather small against wave length dimension and therefore substantially not contributive to field attenuation with radial ribs being provided as before at 7 forming cavities 8 reducing the overall dielectric constant in accordance with the invention to a value which is not higher or not substantially higher than that of the surrounding atmosphere or air.
In accordance with a further feature of the invention, cavities 8 may be so arranged that they do not extend continually and in the same direction throughout the entire length of the conductor surface but only over predetermined short lengths 9, 10, as apparent from Fig. 3 which are separated from each other by walls 11 extending perpendicular to the axis of the surface wave conductor and which are angularly displaced with respect to each other so as to present a better distribution or homogenization of the dielectric constant over the entire length of the surface Wave conductor of say several thousand foot length. This especially applies to antenna lines in which the invention is believed to be of particular advantage.
Thus a number of completely enclosed cavities 12, 1'3 are realized extending radially around as well as longitudinally along conductor 1.
In accordance with another feature of the invention it is now feasible to further reduce the dielectric constant and to bring it as close as possible to that of the surrounding air by enclosing in these spaces :a gas at lower dielectric constant -than that prevailing in the surrounding atmosphere.
Such gases of lower dielectric constant are Well known in the art, for example, lhydrogen or helium; and to enclose such gases into dielectric cavities made of rubber, polyethylene or yany other thermosetting plastic or extrusion material is Well known and need not be explained in detail.
One of the simplest ways of achieving such gas enclosures of predetermined dimensions and gas content is to form or extrude the plastic in such a gas atmosphere or at least to add to the extrusion liquid or solution the desired gas content in a form in which during the extrusion process it will either be formed or exist at the moment of extrusion at the desired portions of the extrusion structure.
While Figs. 2 and 3 show a direct application of the low dielectric constant coating on a surface Wave conductor it has been found useful to provide in addition to such coating a continuous density type of rather usual and relatively high dielectric constant but of a thickness which is small against the wave length contemplated or at least small as compared to the diameter of the region of maximum intensity of the surface wave field.
In Fig. 2, intermediate coating 14 is an enamel coating and serves not only to concentrate the wave field to the required dimensions lbut at the same time to protect the outer surface of the surface wave conductor itself against atmospheric or mechanical attack or any other influences affecting the surface wave field.
In Figs. 2 or `3, the inner shell 6 may replace the immediate dielectric layer or alternatively may be added to enhance protection and definition of the outer conductor surface.
Instead of providing cavities such as shown in Figs. 1, 2 or 3 in more or less regular or symmetrical array around and along a surface wave conductor of appropriate dimensions, such cavities may be arranged in an irregular or asymmetrical manner with more or less equivalent effect on the overall dielectric constant of the dielectric coating.
As apparent from Fig. 4 dielectric coating 15 surrounding an enameled coated surface wave conductor 16 is of a dimension substantially exceeding wave length dimension or at least the region of maximum intensity of the surface wave eld and including a number of irregularly arranged cavities or pores thereby reducing the relatively high dielectric intensity of the coating material itself to the relatively low value approximating the dielectric constant of air, in accordance with the invention.
It has been found in practice that foam rubber or foam polyethylene or any other foam type dielectric can be used in accordance with the invention.
Here too, in accordance with a further feature of the invention, the pores can be arranged to be iilled with air or any other relatively low type dielectric constant gas in otherwise Well-known manner.
As apparent from the cross section of Fig. 4, the discontinuous type of foam rubber structure does not extend uniformly across the entire length of the surface wave conductor extending from antenna 17 to transmitter station l17' but is interrupted periodically through relatively short but relatively densely or continuously structurized dielectric portion 18, which in 4this particular case may consist of relatively less porous, or unporous polyethylene, polystyrene or any other thermostatic plastic.
These relatively hard or rigid portions of .the dielectric coating surrounding the surface wave conductor may serve as supporting points or portions for the entire surface Wave conductor line, to hold `for example nylon strings 19 depends from cross arms 20 of poles 21.
In this Way, wear and tear on dielectric coating of the surface Wave conductor is reduced to a minimum without impairing excessively its attenuation characteristics.
In order to reduce this impairment of attenuation to a In Figs. 5 land 6 a surface wave conductor 22, enamelled or otherwise protected in otherwise well known manner, or also unprotected as the case may be, is provided with a foam or sponge type polyethylene coating 23, removing the influence of rain or ice as far as possible from the high intensity region of the surface wave field surrounding conductor Z2.
In addition, there is provided around the circumference of coating 23 a cylindrical balloon-like structure made of liexible and preferably elastic dielectric material such as rubber schematically indicated at 24.
In deated condition structure 24 is indicated by dotted line 24.
Inilation of structure 24 to shape 24 will produce a mechanical movement removing the ice partially or completely or at any rate removing the ice to a distance which is far out of the region of high intensity of the surface wave eld created by conductor 22.
As apparent from Figs. 5 land 6 structure 24 is formed into threeor more-compartments 25 having side walls 26 which assure proper centrifugation around dielectric coat 23.
In the realization of a balloon-like structure shown in Fig. 6, the various compartments 25 are shown to extend spirally around dielectric coating 23 -and as -a result deformation of the balloon-lilas structure 24 will not only occur in a direction radial with respect to the surface wave conductor, but also in a direction longitudinal to that conductor, and as a result the balloon-like structure will be subjected to twisting movements which will enhance de-icing.
In the embodiment of Fig. 7 the balloon-like structure is applied directly at 27 around a surface wave conductor 28.
In the modication of Fig. 8 a surface wave conductor 29 is provided with a foam polyethylene coating 30 which is provided with la number of longitudinally or spirally extending channels 31.
Such channels may serve to carry hot air or an anticfreeze liquid reducing icing to a minimum.
At the same time under appropriate pressures or pressure changes of the gas or liquid passing through channels 31, the entire dielectric crating 30, and especially its surface, will be subjected to movements causing de-icing, or at least preventing or reducing the formation of ice to a minimum.
Additional heating can be applied in all of the embodiment of Figs. 1 through 10 to prevent or reduce interior icing or at least reduce internal condensation to a minimum.
However, in accordance with the invention, the electric heat required in the case of Figs. 1 to 8 is relatively small and may be held substantially below the temperature affecting the structure or efficiency of the insulating coating of the surface wave conductor, such as polyethylene, since the principal de-icing operation is taken over by the balloon-like structure or inflatory movements.
In Figs. 9 and 10, de-icing is shown to be caused by electric heating applied to 'a surface wave conductor in a manner especially adapted for long distance communication and relatively low microwave ranges such as o-f the order of several hundred megacycles. In this case, a surface wave conductor schematically indicated at 32 is provided with a number of relatively high heat conducting but -still well insulating rings, cylinders, discs or the like, in a pearl string-like fashion as schematically indicated at 33, and consisting Ifor example of steatite.
In this way it is possible to heat the structure to a much higher temperature than that possible with polyethylene or a similar type of thermosetting plastic, and yet at the same time to obtain a good conduction of the heat to the outside.
In order to assure `dielectric continuity on the pearllike structure 33 an outer polyethylene cover tubing 34 is provided which by proper means such as a plastic filler 35, can be extended into the interstices between rings 33.
While the invention is particularly applicable to high microwave frequencies or to frequencies in which water, snow and ice and other deposits on the surface wave conductors are of Wave length or eld affecting dirnensions, the invention is not limited to any particular frequency in this frequency range, nor is it limited to the particular form, structure or type of dielectric, cells or cavities but may be applied in any form or manner whatsoever without departing from the framework of this disclosure.
I claim:
1. In a microwave communication system, means for launching surface waves at a predetermined wave length range, means for receiving said surface waves, and a surface Wave transmission line connecting said launching and receiving means including a longitudinal conductor including `a dielectric layer exposed to the atmosphere and having an outer surface spaced from the conductor surface at a distance of the order of one wave length of said wave length range whereby said dielectric surface lies beyond the region of maximum intensity of the surface wave field; `and a num-ber of gas filled cavities in said dielectric layer between said outer surface and said conductor surface so distributed as to produce a dielectric constant of an overall value not substantially different from that of the atmosphere surrounding said layer; both said layer and cavities extending substantially over the entire length of said line as exposed to said atmosphere.
2. System according to claim 1 wherein said conductor surface is formed of a `dielectric layer of relatively high dielectric constant and of a thickness which is small relative to wave length.
3. System according to claim 1, wherein said cavities are substantially closed from the outer atmosphere and filled with -a gas yof lower dielectric constant than the outer atmosphere.
4. System according to claim 1 wherein said cavities have an outer wall bordering the atmosphere and an inner wall bordering the conductor which is small relative to wave length dimension.
5. System according to claim 1, wherein said dielectric layer is interrupted -by short portions of continuous type of dielectric layer.
y6. System according to claim 1, wherein said dielectric layer is elastic and comprises inflatable portions.
7. System according to claim l, wherein at least part of said dielectric layer includes a cavity permitting passage of a fluid under greater than -atmospheric pressure.
`8. System according to claim 1, wherein said dielectric layer is divided into cavities forming channels parallel to the conductor axis.
9. System according to claim 1, wherein said dielectric layer is divided into cavities forming channels helicoidal to the conductor axis.
-lOL System according to claim 1, wherein the dielectric layer consists of a number of cylinders iarranged over said conductor in pearl-string fashion.
11. System according to claim 10 comprising means including a thermosetting plastic for iilling at least a portion of the interstices between said cylinders.
12. System according to claim 10, wherein said cylinders consist of ferrites.
References Cited in the le of this patent UNITED STATES PATENTS 2,129,711 Southworth Sept. 13, 1938 2,588,610 Boothroyd et al. Mar. 1'1, 1952 2,688,732 Kook Sept. 7, 1954 2,770,783 Clavier et al Nov. 13, 11956 FOREIGN PATENTS 694,622 Great Britain July 22, 1953 899,685 Germany Dec. 14, 1953 1,075,609 France Apr. 14, 1954 1,075,899 France Apr. 14, 1954
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US509803A US2949589A (en) | 1955-05-20 | 1955-05-20 | Microwave communication lines |
DEH27101A DE1055068B (en) | 1955-05-20 | 1956-05-19 | Surface waveguide for the transmission of micro or decimeter waves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US509803A US2949589A (en) | 1955-05-20 | 1955-05-20 | Microwave communication lines |
Publications (1)
Publication Number | Publication Date |
---|---|
US2949589A true US2949589A (en) | 1960-08-16 |
Family
ID=24028144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US509803A Expired - Lifetime US2949589A (en) | 1955-05-20 | 1955-05-20 | Microwave communication lines |
Country Status (2)
Country | Link |
---|---|
US (1) | US2949589A (en) |
DE (1) | DE1055068B (en) |
Cited By (202)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3040278A (en) * | 1958-06-30 | 1962-06-19 | Polytechnic Inst Brooklyn | Broad-band single-wire transmission line |
US3668574A (en) * | 1966-10-07 | 1972-06-06 | British Railways Board | Hybrid mode electric transmission line using accentuated asymmetrical dual surface waves |
WO2016122933A1 (en) * | 2015-01-30 | 2016-08-04 | At&T Intellectual Property I, Lp | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
US9461706B1 (en) | 2015-07-31 | 2016-10-04 | At&T Intellectual Property I, Lp | Method and apparatus for exchanging communication signals |
US9467870B2 (en) | 2013-11-06 | 2016-10-11 | At&T Intellectual Property I, L.P. | Surface-wave communications and methods thereof |
US9479266B2 (en) | 2013-12-10 | 2016-10-25 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9490869B1 (en) | 2015-05-14 | 2016-11-08 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
WO2016182699A1 (en) * | 2015-05-14 | 2016-11-17 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US9503189B2 (en) | 2014-10-10 | 2016-11-22 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
WO2016187034A1 (en) * | 2015-05-15 | 2016-11-24 | At&T Intellectual Property I, Lp | Transmission medium having a conductive material and methods for use therewith |
US9509415B1 (en) | 2015-06-25 | 2016-11-29 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US9520945B2 (en) | 2014-10-21 | 2016-12-13 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
WO2016200492A1 (en) * | 2015-06-09 | 2016-12-15 | At&T Intellectual Property I, Lp | Transmission medium having an inner waveguide and methods for use therewith |
US9525524B2 (en) | 2013-05-31 | 2016-12-20 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9525210B2 (en) | 2014-10-21 | 2016-12-20 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9531427B2 (en) | 2014-11-20 | 2016-12-27 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
WO2017014840A1 (en) * | 2015-07-23 | 2017-01-26 | At&T Intellectual Property I, Lp | Dielectric transmission medium connector and methods for use therewith |
US20170025200A1 (en) * | 2002-09-24 | 2017-01-26 | Commscope Technologies Llc | Communication wire |
US9564947B2 (en) | 2014-10-21 | 2017-02-07 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with diversity and methods for use therewith |
US9571209B2 (en) | 2014-10-21 | 2017-02-14 | At&T Intellectual Property I, L.P. | Transmission device with impairment compensation and methods for use therewith |
US9577307B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9608740B2 (en) | 2015-07-15 | 2017-03-28 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9615269B2 (en) | 2014-10-02 | 2017-04-04 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9628116B2 (en) | 2015-07-14 | 2017-04-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
US9628854B2 (en) | 2014-09-29 | 2017-04-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
US9640850B2 (en) | 2015-06-25 | 2017-05-02 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US9653770B2 (en) | 2014-10-21 | 2017-05-16 | At&T Intellectual Property I, L.P. | Guided wave coupler, coupling module and methods for use therewith |
US9654173B2 (en) | 2014-11-20 | 2017-05-16 | At&T Intellectual Property I, L.P. | Apparatus for powering a communication device and methods thereof |
US9667317B2 (en) | 2015-06-15 | 2017-05-30 | At&T Intellectual Property I, L.P. | Method and apparatus for providing security using network traffic adjustments |
US9680670B2 (en) | 2014-11-20 | 2017-06-13 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
US9685992B2 (en) | 2014-10-03 | 2017-06-20 | At&T Intellectual Property I, L.P. | Circuit panel network and methods thereof |
US9692101B2 (en) | 2014-08-26 | 2017-06-27 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire |
US9699785B2 (en) | 2012-12-05 | 2017-07-04 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9705561B2 (en) | 2015-04-24 | 2017-07-11 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US9705571B2 (en) | 2015-09-16 | 2017-07-11 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system |
US9722318B2 (en) | 2015-07-14 | 2017-08-01 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9729197B2 (en) | 2015-10-01 | 2017-08-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating network management traffic over a network |
US9735833B2 (en) | 2015-07-31 | 2017-08-15 | At&T Intellectual Property I, L.P. | Method and apparatus for communications management in a neighborhood network |
US9742462B2 (en) | 2014-12-04 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
US9749053B2 (en) | 2015-07-23 | 2017-08-29 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US9749013B2 (en) | 2015-03-17 | 2017-08-29 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium |
US9755697B2 (en) | 2014-09-15 | 2017-09-05 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US9762289B2 (en) | 2014-10-14 | 2017-09-12 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting or receiving signals in a transportation system |
US9769128B2 (en) | 2015-09-28 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for encryption of communications over a network |
US9769020B2 (en) | 2014-10-21 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for responding to events affecting communications in a communication network |
US9780834B2 (en) | 2014-10-21 | 2017-10-03 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
US9793955B2 (en) | 2015-04-24 | 2017-10-17 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US9793954B2 (en) | 2015-04-28 | 2017-10-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
US9793951B2 (en) | 2015-07-15 | 2017-10-17 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9800327B2 (en) | 2014-11-20 | 2017-10-24 | At&T Intellectual Property I, L.P. | Apparatus for controlling operations of a communication device and methods thereof |
US9820146B2 (en) | 2015-06-12 | 2017-11-14 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9838896B1 (en) | 2016-12-09 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for assessing network coverage |
US9836957B2 (en) | 2015-07-14 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating with premises equipment |
US9847850B2 (en) | 2014-10-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9847566B2 (en) | 2015-07-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
US9853342B2 (en) | 2015-07-14 | 2017-12-26 | At&T Intellectual Property I, L.P. | Dielectric transmission medium connector and methods for use therewith |
US9860075B1 (en) | 2016-08-26 | 2018-01-02 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
US9865911B2 (en) | 2015-06-25 | 2018-01-09 | At&T Intellectual Property I, L.P. | Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium |
US9866309B2 (en) | 2015-06-03 | 2018-01-09 | At&T Intellectual Property I, Lp | Host node device and methods for use therewith |
US9871282B2 (en) | 2015-05-14 | 2018-01-16 | At&T Intellectual Property I, L.P. | At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric |
US9876570B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9876605B1 (en) | 2016-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Launcher and coupling system to support desired guided wave mode |
US9876264B2 (en) | 2015-10-02 | 2018-01-23 | At&T Intellectual Property I, Lp | Communication system, guided wave switch and methods for use therewith |
US9882257B2 (en) | 2015-07-14 | 2018-01-30 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9882277B2 (en) | 2015-10-02 | 2018-01-30 | At&T Intellectual Property I, Lp | Communication device and antenna assembly with actuated gimbal mount |
US9893795B1 (en) | 2016-12-07 | 2018-02-13 | At&T Intellectual Property I, Lp | Method and repeater for broadband distribution |
US9904535B2 (en) | 2015-09-14 | 2018-02-27 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing software |
US9906269B2 (en) | 2014-09-17 | 2018-02-27 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
US9912027B2 (en) | 2015-07-23 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
US9913139B2 (en) | 2015-06-09 | 2018-03-06 | At&T Intellectual Property I, L.P. | Signal fingerprinting for authentication of communicating devices |
US9912381B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US9912419B1 (en) | 2016-08-24 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
US9911020B1 (en) | 2016-12-08 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for tracking via a radio frequency identification device |
US9917341B2 (en) | 2015-05-27 | 2018-03-13 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves |
US9927517B1 (en) | 2016-12-06 | 2018-03-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for sensing rainfall |
US9948333B2 (en) | 2015-07-23 | 2018-04-17 | At&T Intellectual Property I, L.P. | Method and apparatus for wireless communications to mitigate interference |
US9948354B2 (en) | 2015-04-28 | 2018-04-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device with reflective plate and methods for use therewith |
US9954287B2 (en) | 2014-11-20 | 2018-04-24 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
US9967173B2 (en) | 2015-07-31 | 2018-05-08 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9973940B1 (en) | 2017-02-27 | 2018-05-15 | At&T Intellectual Property I, L.P. | Apparatus and methods for dynamic impedance matching of a guided wave launcher |
US9991580B2 (en) | 2016-10-21 | 2018-06-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
US9999038B2 (en) | 2013-05-31 | 2018-06-12 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9998870B1 (en) | 2016-12-08 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing |
US10009067B2 (en) | 2014-12-04 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US10009901B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations |
US10009065B2 (en) | 2012-12-05 | 2018-06-26 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US10009063B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal |
US10020587B2 (en) | 2015-07-31 | 2018-07-10 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
US10020844B2 (en) | 2016-12-06 | 2018-07-10 | T&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
US10027397B2 (en) | 2016-12-07 | 2018-07-17 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
US10033108B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
US10033107B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10044409B2 (en) | 2015-07-14 | 2018-08-07 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US10051483B2 (en) | 2015-10-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
US10051629B2 (en) | 2015-09-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an in-band reference signal |
US10069535B2 (en) | 2016-12-08 | 2018-09-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves having a certain electric field structure |
US10074890B2 (en) | 2015-10-02 | 2018-09-11 | At&T Intellectual Property I, L.P. | Communication device and antenna with integrated light assembly |
US10079661B2 (en) | 2015-09-16 | 2018-09-18 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a clock reference |
US10090594B2 (en) | 2016-11-23 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system having structural configurations for assembly |
US10090606B2 (en) | 2015-07-15 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
US10103422B2 (en) | 2016-12-08 | 2018-10-16 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10103801B2 (en) | 2015-06-03 | 2018-10-16 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US10135145B2 (en) | 2016-12-06 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
US10136434B2 (en) | 2015-09-16 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel |
US10135146B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10135147B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via an antenna |
US10139820B2 (en) | 2016-12-07 | 2018-11-27 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
US10142086B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10148016B2 (en) | 2015-07-14 | 2018-12-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
US10154493B2 (en) | 2015-06-03 | 2018-12-11 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
US10170840B2 (en) | 2015-07-14 | 2019-01-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10168695B2 (en) | 2016-12-07 | 2019-01-01 | At&T Intellectual Property I, L.P. | Method and apparatus for controlling an unmanned aircraft |
US10178445B2 (en) | 2016-11-23 | 2019-01-08 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
US10205655B2 (en) | 2015-07-14 | 2019-02-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
US10225025B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
US10224634B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting an operational characteristic of an antenna |
US10243784B2 (en) | 2014-11-20 | 2019-03-26 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
US10243270B2 (en) | 2016-12-07 | 2019-03-26 | At&T Intellectual Property I, L.P. | Beam adaptive multi-feed dielectric antenna system and methods for use therewith |
US10264586B2 (en) | 2016-12-09 | 2019-04-16 | At&T Mobility Ii Llc | Cloud-based packet controller and methods for use therewith |
US10291334B2 (en) | 2016-11-03 | 2019-05-14 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
US10291311B2 (en) | 2016-09-09 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a fault in a distributed antenna system |
US10298293B2 (en) | 2017-03-13 | 2019-05-21 | At&T Intellectual Property I, L.P. | Apparatus of communication utilizing wireless network devices |
US10305190B2 (en) | 2016-12-01 | 2019-05-28 | At&T Intellectual Property I, L.P. | Reflecting dielectric antenna system and methods for use therewith |
US10312567B2 (en) | 2016-10-26 | 2019-06-04 | At&T Intellectual Property I, L.P. | Launcher with planar strip antenna and methods for use therewith |
US10320586B2 (en) | 2015-07-14 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
US10326689B2 (en) | 2016-12-08 | 2019-06-18 | At&T Intellectual Property I, L.P. | Method and system for providing alternative communication paths |
US10326494B2 (en) | 2016-12-06 | 2019-06-18 | At&T Intellectual Property I, L.P. | Apparatus for measurement de-embedding and methods for use therewith |
US10340983B2 (en) | 2016-12-09 | 2019-07-02 | At&T Intellectual Property I, L.P. | Method and apparatus for surveying remote sites via guided wave communications |
US10340603B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
US10340573B2 (en) | 2016-10-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
US10340600B2 (en) | 2016-10-18 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via plural waveguide systems |
US10340601B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10341142B2 (en) | 2015-07-14 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
US10348391B2 (en) | 2015-06-03 | 2019-07-09 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10355367B2 (en) | 2015-10-16 | 2019-07-16 | At&T Intellectual Property I, L.P. | Antenna structure for exchanging wireless signals |
US10359749B2 (en) | 2016-12-07 | 2019-07-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10361489B2 (en) | 2016-12-01 | 2019-07-23 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
US10374316B2 (en) | 2016-10-21 | 2019-08-06 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
US10382976B2 (en) | 2016-12-06 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US10389029B2 (en) | 2016-12-07 | 2019-08-20 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
US10389037B2 (en) | 2016-12-08 | 2019-08-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
US10396887B2 (en) | 2015-06-03 | 2019-08-27 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US10411356B2 (en) | 2016-12-08 | 2019-09-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
US10439675B2 (en) | 2016-12-06 | 2019-10-08 | At&T Intellectual Property I, L.P. | Method and apparatus for repeating guided wave communication signals |
US10446936B2 (en) | 2016-12-07 | 2019-10-15 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
US10498044B2 (en) | 2016-11-03 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus for configuring a surface of an antenna |
US10530505B2 (en) | 2016-12-08 | 2020-01-07 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves along a transmission medium |
US10535928B2 (en) | 2016-11-23 | 2020-01-14 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
US10547348B2 (en) | 2016-12-07 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10601494B2 (en) | 2016-12-08 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
US10637149B2 (en) | 2016-12-06 | 2020-04-28 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna and methods for use therewith |
US10650940B2 (en) | 2015-05-15 | 2020-05-12 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US10665942B2 (en) | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
US10694379B2 (en) | 2016-12-06 | 2020-06-23 | At&T Intellectual Property I, L.P. | Waveguide system with device-based authentication and methods for use therewith |
US10727599B2 (en) | 2016-12-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Launcher with slot antenna and methods for use therewith |
US10755542B2 (en) | 2016-12-06 | 2020-08-25 | At&T Intellectual Property I, L.P. | Method and apparatus for surveillance via guided wave communication |
US10777873B2 (en) | 2016-12-08 | 2020-09-15 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10784670B2 (en) | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
US10811767B2 (en) | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with convex dielectric radome |
US10819035B2 (en) | 2016-12-06 | 2020-10-27 | At&T Intellectual Property I, L.P. | Launcher with helical antenna and methods for use therewith |
US10916969B2 (en) | 2016-12-08 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power using an inductive coupling |
US10931012B2 (en) | 2018-11-14 | 2021-02-23 | At&T Intellectual Property I, L.P. | Device with programmable reflector for transmitting or receiving electromagnetic waves |
US10938104B2 (en) | 2018-11-16 | 2021-03-02 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a change in an orientation of an antenna |
US10938108B2 (en) | 2016-12-08 | 2021-03-02 | At&T Intellectual Property I, L.P. | Frequency selective multi-feed dielectric antenna system and methods for use therewith |
US10945138B2 (en) | 2017-10-19 | 2021-03-09 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote device feedback and methods for use therewith |
US10951266B1 (en) | 2019-12-03 | 2021-03-16 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable wrap wire and methods for use therewith |
US10951267B1 (en) | 2019-12-04 | 2021-03-16 | At&T Intellectual Property I, L.P. | Method and apparatus for adapting a waveguide to properties of a physical transmission medium |
US10957977B2 (en) | 2018-11-14 | 2021-03-23 | At&T Intellectual Property I, L.P. | Device with virtual reflector for transmitting or receiving electromagnetic waves |
US10964995B2 (en) | 2017-09-05 | 2021-03-30 | At&T Intellectual Property I, L.P. | Dielectric coupling system with mode control and methods for use therewith |
US10965344B2 (en) | 2018-11-29 | 2021-03-30 | At&T Intellectual Property 1, L.P. | Methods and apparatus for exchanging wireless signals utilizing electromagnetic waves having differing characteristics |
US10977932B2 (en) | 2018-12-04 | 2021-04-13 | At&T Intellectual Property I, L.P. | Method and apparatus for electromagnetic wave communications associated with vehicular traffic |
US10992343B1 (en) | 2019-12-04 | 2021-04-27 | At&T Intellectual Property I, L.P. | Guided electromagnetic wave communications via an underground cable |
US11018525B2 (en) | 2017-12-07 | 2021-05-25 | At&T Intellectual Property 1, L.P. | Methods and apparatus for increasing a transfer of energy in an inductive power supply |
US11018401B2 (en) | 2017-09-05 | 2021-05-25 | At&T Intellectual Property I, L.P. | Flared dielectric coupling system and methods for use therewith |
US11025460B2 (en) | 2014-11-20 | 2021-06-01 | At&T Intellectual Property I, L.P. | Methods and apparatus for accessing interstitial areas of a cable |
US11032819B2 (en) | 2016-09-15 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a control channel reference signal |
US11063334B2 (en) | 2019-12-05 | 2021-07-13 | At&T Intellectual Property I, L.P. | Method and apparatus having one or more adjustable structures for launching or receiving electromagnetic waves having a desired wavemode |
US11070250B2 (en) | 2019-12-03 | 2021-07-20 | At&T Intellectual Property I, L.P. | Method and apparatus for calibrating waveguide systems to manage propagation delays of electromagnetic waves |
US11082091B2 (en) | 2018-11-29 | 2021-08-03 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a power line |
US11108126B2 (en) | 2017-09-05 | 2021-08-31 | At&T Intellectual Property I, L.P. | Multi-arm dielectric coupling system and methods for use therewith |
US11146916B2 (en) | 2016-12-08 | 2021-10-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing on a communication device |
US11165642B2 (en) | 2018-03-26 | 2021-11-02 | At&T Intellectual Property I, L.P. | Processing of electromagnetic waves and methods thereof |
US11171960B2 (en) | 2018-12-03 | 2021-11-09 | At&T Intellectual Property I, L.P. | Network security management based on collection and cataloging of network-accessible device information |
US11205857B2 (en) | 2018-12-04 | 2021-12-21 | At&T Intellectual Property I, L.P. | System and method for launching guided electromagnetic waves with channel feedback |
US11223098B2 (en) | 2019-12-04 | 2022-01-11 | At&T Intellectual Property I, L.P. | Waveguide system comprising a scattering device for generating a second non-fundamental wave mode from a first non-fundamental wave mode |
US11277159B2 (en) | 2019-12-03 | 2022-03-15 | At&T Intellectual Property I, L.P. | Method and apparatus for managing propagation delays of electromagnetic waves |
US11283182B2 (en) | 2018-12-03 | 2022-03-22 | At&T Intellectual Property I, L.P. | Guided wave launcher with lens and methods for use therewith |
US11283177B2 (en) | 2019-12-02 | 2022-03-22 | At&T Intellectual Property I, L.P. | Surface wave transmission device with RF housing and methods for use therewith |
US11356208B2 (en) | 2019-12-04 | 2022-06-07 | At&T Intellectual Property I, L.P. | Transmission device with hybrid ARQ and methods for use therewith |
US11362438B2 (en) | 2018-12-04 | 2022-06-14 | At&T Intellectual Property I, L.P. | Configurable guided wave launcher and methods for use therewith |
US11381007B2 (en) | 2017-10-26 | 2022-07-05 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and directors and methods for use therewith |
US11431555B2 (en) | 2017-10-04 | 2022-08-30 | At&T Intellectual Property I, L.P. | Apparatus and methods for mitigating a fault that adversely affects ultra-wideband transmissions |
US11456771B1 (en) | 2021-03-17 | 2022-09-27 | At&T Intellectual Property I, L.P. | Apparatuses and methods for facilitating a conveyance of status in communication systems and networks |
US11502724B2 (en) | 2019-12-03 | 2022-11-15 | At&T Intellectual Property I, L.P. | Method and apparatus for transitioning between electromagnetic wave modes |
US11533079B2 (en) | 2021-03-17 | 2022-12-20 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating guided wave communications with an enhanced flexibility in parameters |
US11546258B2 (en) | 2018-03-30 | 2023-01-03 | At&T Intellectual Property I, L.P. | Method and apparatus for switching of data channels provided in electromagnetic waves |
US11569868B2 (en) | 2021-03-17 | 2023-01-31 | At&T Intellectual Property I, L.P. | Apparatuses and methods for enhancing a reliability of power available to communicaton devices via an insulator |
US11581917B2 (en) | 2019-12-05 | 2023-02-14 | At&T Intellectual Property I, L.P. | Method and apparatus adapted to a characteristic of an outer surface of a transmission medium for launching or receiving electromagnetic waves |
US11632146B2 (en) | 2018-10-02 | 2023-04-18 | At&T Intellectual Property I, L.P. | Methods and apparatus for launching or receiving electromagnetic waves |
US11664883B2 (en) | 2021-04-06 | 2023-05-30 | At&T Intellectual Property I, L.P. | Time domain duplexing repeater using envelope detection |
US11671926B2 (en) | 2021-03-17 | 2023-06-06 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating signaling and power in a communication system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2129711A (en) * | 1933-03-16 | 1938-09-13 | American Telephone & Telegraph | Guided transmission of ultra high frequency waves |
US2588610A (en) * | 1946-06-07 | 1952-03-11 | Philco Corp | Directional antenna system |
GB694622A (en) * | 1950-11-18 | 1953-07-22 | Standard Telephones Cables Ltd | Wave guide for electromagnetic surface waves |
DE899685C (en) * | 1950-11-18 | 1953-12-14 | Lorenz C Ag | Waveguide for electromagnetic surface waves |
US2688732A (en) * | 1949-05-05 | 1954-09-07 | Bell Telephone Labor Inc | Wave guide |
FR1075609A (en) * | 1953-03-11 | 1954-10-19 | Lignes Telegraph Telephon | Supports and wall feedthroughs for surface wave transmission lines |
FR1075899A (en) * | 1952-04-15 | 1954-10-20 | Siemens Ag | Transmitter and waveguide device in dielectric materials |
US2770783A (en) * | 1950-05-23 | 1956-11-13 | Int Standard Electric Corp | Surface wave transmission line |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2595078A (en) * | 1948-05-28 | 1952-04-29 | Rca Corp | Dielectric wave guide |
-
1955
- 1955-05-20 US US509803A patent/US2949589A/en not_active Expired - Lifetime
-
1956
- 1956-05-19 DE DEH27101A patent/DE1055068B/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2129711A (en) * | 1933-03-16 | 1938-09-13 | American Telephone & Telegraph | Guided transmission of ultra high frequency waves |
US2588610A (en) * | 1946-06-07 | 1952-03-11 | Philco Corp | Directional antenna system |
US2688732A (en) * | 1949-05-05 | 1954-09-07 | Bell Telephone Labor Inc | Wave guide |
US2770783A (en) * | 1950-05-23 | 1956-11-13 | Int Standard Electric Corp | Surface wave transmission line |
GB694622A (en) * | 1950-11-18 | 1953-07-22 | Standard Telephones Cables Ltd | Wave guide for electromagnetic surface waves |
DE899685C (en) * | 1950-11-18 | 1953-12-14 | Lorenz C Ag | Waveguide for electromagnetic surface waves |
FR1075899A (en) * | 1952-04-15 | 1954-10-20 | Siemens Ag | Transmitter and waveguide device in dielectric materials |
FR1075609A (en) * | 1953-03-11 | 1954-10-19 | Lignes Telegraph Telephon | Supports and wall feedthroughs for surface wave transmission lines |
Cited By (281)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3040278A (en) * | 1958-06-30 | 1962-06-19 | Polytechnic Inst Brooklyn | Broad-band single-wire transmission line |
US3668574A (en) * | 1966-10-07 | 1972-06-06 | British Railways Board | Hybrid mode electric transmission line using accentuated asymmetrical dual surface waves |
US11355262B2 (en) | 2002-09-24 | 2022-06-07 | Commscope Technologies Llc | Communication wire |
US20170025200A1 (en) * | 2002-09-24 | 2017-01-26 | Commscope Technologies Llc | Communication wire |
US10242767B2 (en) * | 2002-09-24 | 2019-03-26 | Commscope Technologies Llc | Communication wire |
US10194437B2 (en) | 2012-12-05 | 2019-01-29 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US10009065B2 (en) | 2012-12-05 | 2018-06-26 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9788326B2 (en) | 2012-12-05 | 2017-10-10 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9699785B2 (en) | 2012-12-05 | 2017-07-04 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9999038B2 (en) | 2013-05-31 | 2018-06-12 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US10091787B2 (en) | 2013-05-31 | 2018-10-02 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US10051630B2 (en) | 2013-05-31 | 2018-08-14 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9525524B2 (en) | 2013-05-31 | 2016-12-20 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9930668B2 (en) | 2013-05-31 | 2018-03-27 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9674711B2 (en) | 2013-11-06 | 2017-06-06 | At&T Intellectual Property I, L.P. | Surface-wave communications and methods thereof |
US9467870B2 (en) | 2013-11-06 | 2016-10-11 | At&T Intellectual Property I, L.P. | Surface-wave communications and methods thereof |
US9661505B2 (en) | 2013-11-06 | 2017-05-23 | At&T Intellectual Property I, L.P. | Surface-wave communications and methods thereof |
US9876584B2 (en) | 2013-12-10 | 2018-01-23 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9794003B2 (en) | 2013-12-10 | 2017-10-17 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9479266B2 (en) | 2013-12-10 | 2016-10-25 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9692101B2 (en) | 2014-08-26 | 2017-06-27 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire |
US10096881B2 (en) | 2014-08-26 | 2018-10-09 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves to an outer surface of a transmission medium |
US9768833B2 (en) | 2014-09-15 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US9755697B2 (en) | 2014-09-15 | 2017-09-05 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US10063280B2 (en) | 2014-09-17 | 2018-08-28 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
US9906269B2 (en) | 2014-09-17 | 2018-02-27 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
US9628854B2 (en) | 2014-09-29 | 2017-04-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
US9615269B2 (en) | 2014-10-02 | 2017-04-04 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9973416B2 (en) | 2014-10-02 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9998932B2 (en) | 2014-10-02 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9685992B2 (en) | 2014-10-03 | 2017-06-20 | At&T Intellectual Property I, L.P. | Circuit panel network and methods thereof |
US9503189B2 (en) | 2014-10-10 | 2016-11-22 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
US9866276B2 (en) | 2014-10-10 | 2018-01-09 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
US9973299B2 (en) | 2014-10-14 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9762289B2 (en) | 2014-10-14 | 2017-09-12 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting or receiving signals in a transportation system |
US9847850B2 (en) | 2014-10-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9564947B2 (en) | 2014-10-21 | 2017-02-07 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with diversity and methods for use therewith |
US9577307B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9876587B2 (en) | 2014-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Transmission device with impairment compensation and methods for use therewith |
US9653770B2 (en) | 2014-10-21 | 2017-05-16 | At&T Intellectual Property I, L.P. | Guided wave coupler, coupling module and methods for use therewith |
US9520945B2 (en) | 2014-10-21 | 2016-12-13 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9912033B2 (en) | 2014-10-21 | 2018-03-06 | At&T Intellectual Property I, Lp | Guided wave coupler, coupling module and methods for use therewith |
US9705610B2 (en) | 2014-10-21 | 2017-07-11 | At&T Intellectual Property I, L.P. | Transmission device with impairment compensation and methods for use therewith |
US9627768B2 (en) | 2014-10-21 | 2017-04-18 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9525210B2 (en) | 2014-10-21 | 2016-12-20 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9948355B2 (en) | 2014-10-21 | 2018-04-17 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9596001B2 (en) | 2014-10-21 | 2017-03-14 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9577306B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9780834B2 (en) | 2014-10-21 | 2017-10-03 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
US9871558B2 (en) | 2014-10-21 | 2018-01-16 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9960808B2 (en) | 2014-10-21 | 2018-05-01 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9954286B2 (en) | 2014-10-21 | 2018-04-24 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9769020B2 (en) | 2014-10-21 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for responding to events affecting communications in a communication network |
US9571209B2 (en) | 2014-10-21 | 2017-02-14 | At&T Intellectual Property I, L.P. | Transmission device with impairment compensation and methods for use therewith |
US9742521B2 (en) | 2014-11-20 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US10243784B2 (en) | 2014-11-20 | 2019-03-26 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
US9954287B2 (en) | 2014-11-20 | 2018-04-24 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
US9654173B2 (en) | 2014-11-20 | 2017-05-16 | At&T Intellectual Property I, L.P. | Apparatus for powering a communication device and methods thereof |
US11025460B2 (en) | 2014-11-20 | 2021-06-01 | At&T Intellectual Property I, L.P. | Methods and apparatus for accessing interstitial areas of a cable |
US9680670B2 (en) | 2014-11-20 | 2017-06-13 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
US9544006B2 (en) | 2014-11-20 | 2017-01-10 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US9749083B2 (en) | 2014-11-20 | 2017-08-29 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US9712350B2 (en) | 2014-11-20 | 2017-07-18 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
US9800327B2 (en) | 2014-11-20 | 2017-10-24 | At&T Intellectual Property I, L.P. | Apparatus for controlling operations of a communication device and methods thereof |
US9531427B2 (en) | 2014-11-20 | 2016-12-27 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US10917136B2 (en) | 2014-12-04 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US10009067B2 (en) | 2014-12-04 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US9742462B2 (en) | 2014-12-04 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
US10144036B2 (en) | 2015-01-30 | 2018-12-04 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
US10583463B2 (en) | 2015-01-30 | 2020-03-10 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
WO2016122933A1 (en) * | 2015-01-30 | 2016-08-04 | At&T Intellectual Property I, Lp | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
US9876571B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9876570B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9749013B2 (en) | 2015-03-17 | 2017-08-29 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium |
US9831912B2 (en) | 2015-04-24 | 2017-11-28 | At&T Intellectual Property I, Lp | Directional coupling device and methods for use therewith |
US10224981B2 (en) | 2015-04-24 | 2019-03-05 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US9705561B2 (en) | 2015-04-24 | 2017-07-11 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US10958307B2 (en) | 2015-04-24 | 2021-03-23 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US9793955B2 (en) | 2015-04-24 | 2017-10-17 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US9948354B2 (en) | 2015-04-28 | 2018-04-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device with reflective plate and methods for use therewith |
US9793954B2 (en) | 2015-04-28 | 2017-10-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
US9871282B2 (en) | 2015-05-14 | 2018-01-16 | At&T Intellectual Property I, L.P. | At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric |
US9748626B2 (en) | 2015-05-14 | 2017-08-29 | At&T Intellectual Property I, L.P. | Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium |
CN107787559A (en) * | 2015-05-14 | 2018-03-09 | At&T知识产权部有限合伙公司 | Transmission medium and its application method with multiple kernels |
WO2016183472A1 (en) * | 2015-05-14 | 2016-11-17 | At&T Intellectual Property I, Lp | Transmission medium having multiple cores and methods for use therewith |
WO2016182699A1 (en) * | 2015-05-14 | 2016-11-17 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US11031668B2 (en) | 2015-05-14 | 2021-06-08 | At&T Intellectual Property I, L.P. | Transmission medium comprising a non-circular dielectric core adaptable for mating with a second dielectric core splicing device |
US9490869B1 (en) | 2015-05-14 | 2016-11-08 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US9887447B2 (en) | 2015-05-14 | 2018-02-06 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US10650940B2 (en) | 2015-05-15 | 2020-05-12 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US10679767B2 (en) | 2015-05-15 | 2020-06-09 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
WO2016187034A1 (en) * | 2015-05-15 | 2016-11-24 | At&T Intellectual Property I, Lp | Transmission medium having a conductive material and methods for use therewith |
US9917341B2 (en) | 2015-05-27 | 2018-03-13 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves |
US11145948B2 (en) | 2015-05-27 | 2021-10-12 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves onto a cable by using a tapered insulation layer with a slit |
US10348391B2 (en) | 2015-06-03 | 2019-07-09 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10050697B2 (en) | 2015-06-03 | 2018-08-14 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US10103801B2 (en) | 2015-06-03 | 2018-10-16 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US10396887B2 (en) | 2015-06-03 | 2019-08-27 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US10812174B2 (en) | 2015-06-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US9912381B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US9912382B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US10154493B2 (en) | 2015-06-03 | 2018-12-11 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
US10797781B2 (en) | 2015-06-03 | 2020-10-06 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US9866309B2 (en) | 2015-06-03 | 2018-01-09 | At&T Intellectual Property I, Lp | Host node device and methods for use therewith |
US9935703B2 (en) | 2015-06-03 | 2018-04-03 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US10985436B2 (en) | 2015-06-09 | 2021-04-20 | At&T Intellectual Property I, L.P. | Apparatus and method utilizing a transmission medium with hollow waveguide cores |
US9913139B2 (en) | 2015-06-09 | 2018-03-06 | At&T Intellectual Property I, L.P. | Signal fingerprinting for authentication of communicating devices |
US10320046B2 (en) | 2015-06-09 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and method utilizing a transmission medium with a plurality of hollow pathways |
US9997819B2 (en) | 2015-06-09 | 2018-06-12 | At&T Intellectual Property I, L.P. | Transmission medium and method for facilitating propagation of electromagnetic waves via a core |
WO2016200492A1 (en) * | 2015-06-09 | 2016-12-15 | At&T Intellectual Property I, Lp | Transmission medium having an inner waveguide and methods for use therewith |
US10142086B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10142010B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10027398B2 (en) | 2015-06-11 | 2018-07-17 | At&T Intellectual Property I, Lp | Repeater and methods for use therewith |
US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9820146B2 (en) | 2015-06-12 | 2017-11-14 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9667317B2 (en) | 2015-06-15 | 2017-05-30 | At&T Intellectual Property I, L.P. | Method and apparatus for providing security using network traffic adjustments |
US9787412B2 (en) | 2015-06-25 | 2017-10-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US10069185B2 (en) | 2015-06-25 | 2018-09-04 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US9509415B1 (en) | 2015-06-25 | 2016-11-29 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US10090601B2 (en) | 2015-06-25 | 2018-10-02 | At&T Intellectual Property I, L.P. | Waveguide system and methods for inducing a non-fundamental wave mode on a transmission medium |
US9640850B2 (en) | 2015-06-25 | 2017-05-02 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US9882657B2 (en) | 2015-06-25 | 2018-01-30 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US9865911B2 (en) | 2015-06-25 | 2018-01-09 | At&T Intellectual Property I, L.P. | Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium |
US9722318B2 (en) | 2015-07-14 | 2017-08-01 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9882257B2 (en) | 2015-07-14 | 2018-01-30 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US11025300B2 (en) | 2015-07-14 | 2021-06-01 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US9853342B2 (en) | 2015-07-14 | 2017-12-26 | At&T Intellectual Property I, L.P. | Dielectric transmission medium connector and methods for use therewith |
US9628116B2 (en) | 2015-07-14 | 2017-04-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
US10148016B2 (en) | 2015-07-14 | 2018-12-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
US9847566B2 (en) | 2015-07-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
US10170840B2 (en) | 2015-07-14 | 2019-01-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10205655B2 (en) | 2015-07-14 | 2019-02-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
US11658422B2 (en) | 2015-07-14 | 2023-05-23 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10033108B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
US10033107B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10044409B2 (en) | 2015-07-14 | 2018-08-07 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US11189930B2 (en) | 2015-07-14 | 2021-11-30 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US9947982B2 (en) | 2015-07-14 | 2018-04-17 | At&T Intellectual Property I, Lp | Dielectric transmission medium connector and methods for use therewith |
US10341142B2 (en) | 2015-07-14 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
US9836957B2 (en) | 2015-07-14 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating with premises equipment |
US9929755B2 (en) | 2015-07-14 | 2018-03-27 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10320586B2 (en) | 2015-07-14 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
US9793951B2 (en) | 2015-07-15 | 2017-10-17 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9608740B2 (en) | 2015-07-15 | 2017-03-28 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US10090606B2 (en) | 2015-07-15 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
US9948333B2 (en) | 2015-07-23 | 2018-04-17 | At&T Intellectual Property I, L.P. | Method and apparatus for wireless communications to mitigate interference |
US9806818B2 (en) | 2015-07-23 | 2017-10-31 | At&T Intellectual Property I, Lp | Node device, repeater and methods for use therewith |
US9912027B2 (en) | 2015-07-23 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
WO2017014840A1 (en) * | 2015-07-23 | 2017-01-26 | At&T Intellectual Property I, Lp | Dielectric transmission medium connector and methods for use therewith |
US10784670B2 (en) | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
US9871283B2 (en) | 2015-07-23 | 2018-01-16 | At&T Intellectual Property I, Lp | Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration |
US10074886B2 (en) | 2015-07-23 | 2018-09-11 | At&T Intellectual Property I, L.P. | Dielectric transmission medium comprising a plurality of rigid dielectric members coupled together in a ball and socket configuration |
US9749053B2 (en) | 2015-07-23 | 2017-08-29 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US10979342B2 (en) | 2015-07-31 | 2021-04-13 | At&T Intellectual Property 1, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9461706B1 (en) | 2015-07-31 | 2016-10-04 | At&T Intellectual Property I, Lp | Method and apparatus for exchanging communication signals |
US9735833B2 (en) | 2015-07-31 | 2017-08-15 | At&T Intellectual Property I, L.P. | Method and apparatus for communications management in a neighborhood network |
US10020587B2 (en) | 2015-07-31 | 2018-07-10 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
US9967173B2 (en) | 2015-07-31 | 2018-05-08 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9838078B2 (en) | 2015-07-31 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
US9904535B2 (en) | 2015-09-14 | 2018-02-27 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing software |
US10051629B2 (en) | 2015-09-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an in-band reference signal |
US10225842B2 (en) | 2015-09-16 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method, device and storage medium for communications using a modulated signal and a reference signal |
US10009063B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal |
US10009901B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations |
US9705571B2 (en) | 2015-09-16 | 2017-07-11 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system |
US10349418B2 (en) | 2015-09-16 | 2019-07-09 | At&T Intellectual Property I, L.P. | Method and apparatus for managing utilization of wireless resources via use of a reference signal to reduce distortion |
US10136434B2 (en) | 2015-09-16 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel |
US10079661B2 (en) | 2015-09-16 | 2018-09-18 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a clock reference |
US9769128B2 (en) | 2015-09-28 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for encryption of communications over a network |
US9729197B2 (en) | 2015-10-01 | 2017-08-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating network management traffic over a network |
US10074890B2 (en) | 2015-10-02 | 2018-09-11 | At&T Intellectual Property I, L.P. | Communication device and antenna with integrated light assembly |
US9882277B2 (en) | 2015-10-02 | 2018-01-30 | At&T Intellectual Property I, Lp | Communication device and antenna assembly with actuated gimbal mount |
US9876264B2 (en) | 2015-10-02 | 2018-01-23 | At&T Intellectual Property I, Lp | Communication system, guided wave switch and methods for use therewith |
US10355367B2 (en) | 2015-10-16 | 2019-07-16 | At&T Intellectual Property I, L.P. | Antenna structure for exchanging wireless signals |
US10051483B2 (en) | 2015-10-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
US10665942B2 (en) | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
US9912419B1 (en) | 2016-08-24 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
US9860075B1 (en) | 2016-08-26 | 2018-01-02 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
US10291311B2 (en) | 2016-09-09 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a fault in a distributed antenna system |
US11032819B2 (en) | 2016-09-15 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a control channel reference signal |
US10340600B2 (en) | 2016-10-18 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via plural waveguide systems |
US11652297B2 (en) | 2016-10-18 | 2023-05-16 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10135146B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10135147B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via an antenna |
US11205853B2 (en) | 2016-10-18 | 2021-12-21 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US9876605B1 (en) | 2016-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Launcher and coupling system to support desired guided wave mode |
US10374316B2 (en) | 2016-10-21 | 2019-08-06 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
US9991580B2 (en) | 2016-10-21 | 2018-06-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
US10811767B2 (en) | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with convex dielectric radome |
US10340573B2 (en) | 2016-10-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
US10312567B2 (en) | 2016-10-26 | 2019-06-04 | At&T Intellectual Property I, L.P. | Launcher with planar strip antenna and methods for use therewith |
US10291334B2 (en) | 2016-11-03 | 2019-05-14 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
US10225025B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
US10224634B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting an operational characteristic of an antenna |
US10498044B2 (en) | 2016-11-03 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus for configuring a surface of an antenna |
US11139580B2 (en) | 2016-11-23 | 2021-10-05 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10178445B2 (en) | 2016-11-23 | 2019-01-08 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
US10340601B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10340603B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
US10090594B2 (en) | 2016-11-23 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system having structural configurations for assembly |
US10535928B2 (en) | 2016-11-23 | 2020-01-14 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
US10361489B2 (en) | 2016-12-01 | 2019-07-23 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
US10305190B2 (en) | 2016-12-01 | 2019-05-28 | At&T Intellectual Property I, L.P. | Reflecting dielectric antenna system and methods for use therewith |
US9927517B1 (en) | 2016-12-06 | 2018-03-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for sensing rainfall |
US10755542B2 (en) | 2016-12-06 | 2020-08-25 | At&T Intellectual Property I, L.P. | Method and apparatus for surveillance via guided wave communication |
US10326494B2 (en) | 2016-12-06 | 2019-06-18 | At&T Intellectual Property I, L.P. | Apparatus for measurement de-embedding and methods for use therewith |
US10439675B2 (en) | 2016-12-06 | 2019-10-08 | At&T Intellectual Property I, L.P. | Method and apparatus for repeating guided wave communication signals |
US10819035B2 (en) | 2016-12-06 | 2020-10-27 | At&T Intellectual Property I, L.P. | Launcher with helical antenna and methods for use therewith |
US10135145B2 (en) | 2016-12-06 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
US10382976B2 (en) | 2016-12-06 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US10637149B2 (en) | 2016-12-06 | 2020-04-28 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna and methods for use therewith |
US10020844B2 (en) | 2016-12-06 | 2018-07-10 | T&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
US11206552B2 (en) | 2016-12-06 | 2021-12-21 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US11189932B2 (en) | 2016-12-06 | 2021-11-30 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna formed with an antenna mold that compensates the dielectric during curing |
US10694379B2 (en) | 2016-12-06 | 2020-06-23 | At&T Intellectual Property I, L.P. | Waveguide system with device-based authentication and methods for use therewith |
US10727599B2 (en) | 2016-12-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Launcher with slot antenna and methods for use therewith |
US10243270B2 (en) | 2016-12-07 | 2019-03-26 | At&T Intellectual Property I, L.P. | Beam adaptive multi-feed dielectric antenna system and methods for use therewith |
US11183877B2 (en) | 2016-12-07 | 2021-11-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10389029B2 (en) | 2016-12-07 | 2019-08-20 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
US11184050B2 (en) | 2016-12-07 | 2021-11-23 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10139820B2 (en) | 2016-12-07 | 2018-11-27 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
US10359749B2 (en) | 2016-12-07 | 2019-07-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10547348B2 (en) | 2016-12-07 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10446936B2 (en) | 2016-12-07 | 2019-10-15 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
US10168695B2 (en) | 2016-12-07 | 2019-01-01 | At&T Intellectual Property I, L.P. | Method and apparatus for controlling an unmanned aircraft |
US10027397B2 (en) | 2016-12-07 | 2018-07-17 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
US9893795B1 (en) | 2016-12-07 | 2018-02-13 | At&T Intellectual Property I, Lp | Method and repeater for broadband distribution |
US10326689B2 (en) | 2016-12-08 | 2019-06-18 | At&T Intellectual Property I, L.P. | Method and system for providing alternative communication paths |
US10389037B2 (en) | 2016-12-08 | 2019-08-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
US10530505B2 (en) | 2016-12-08 | 2020-01-07 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves along a transmission medium |
US10411356B2 (en) | 2016-12-08 | 2019-09-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
US10938108B2 (en) | 2016-12-08 | 2021-03-02 | At&T Intellectual Property I, L.P. | Frequency selective multi-feed dielectric antenna system and methods for use therewith |
US10103422B2 (en) | 2016-12-08 | 2018-10-16 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10601494B2 (en) | 2016-12-08 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
US10916969B2 (en) | 2016-12-08 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power using an inductive coupling |
US9998870B1 (en) | 2016-12-08 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing |
US9911020B1 (en) | 2016-12-08 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for tracking via a radio frequency identification device |
US10777873B2 (en) | 2016-12-08 | 2020-09-15 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10069535B2 (en) | 2016-12-08 | 2018-09-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves having a certain electric field structure |
US11146916B2 (en) | 2016-12-08 | 2021-10-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing on a communication device |
US9838896B1 (en) | 2016-12-09 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for assessing network coverage |
US10340983B2 (en) | 2016-12-09 | 2019-07-02 | At&T Intellectual Property I, L.P. | Method and apparatus for surveying remote sites via guided wave communications |
US10264586B2 (en) | 2016-12-09 | 2019-04-16 | At&T Mobility Ii Llc | Cloud-based packet controller and methods for use therewith |
US9973940B1 (en) | 2017-02-27 | 2018-05-15 | At&T Intellectual Property I, L.P. | Apparatus and methods for dynamic impedance matching of a guided wave launcher |
US10298293B2 (en) | 2017-03-13 | 2019-05-21 | At&T Intellectual Property I, L.P. | Apparatus of communication utilizing wireless network devices |
US10964995B2 (en) | 2017-09-05 | 2021-03-30 | At&T Intellectual Property I, L.P. | Dielectric coupling system with mode control and methods for use therewith |
US11018401B2 (en) | 2017-09-05 | 2021-05-25 | At&T Intellectual Property I, L.P. | Flared dielectric coupling system and methods for use therewith |
US11108126B2 (en) | 2017-09-05 | 2021-08-31 | At&T Intellectual Property I, L.P. | Multi-arm dielectric coupling system and methods for use therewith |
US11431555B2 (en) | 2017-10-04 | 2022-08-30 | At&T Intellectual Property I, L.P. | Apparatus and methods for mitigating a fault that adversely affects ultra-wideband transmissions |
US10945138B2 (en) | 2017-10-19 | 2021-03-09 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote device feedback and methods for use therewith |
US11381007B2 (en) | 2017-10-26 | 2022-07-05 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and directors and methods for use therewith |
US11018525B2 (en) | 2017-12-07 | 2021-05-25 | At&T Intellectual Property 1, L.P. | Methods and apparatus for increasing a transfer of energy in an inductive power supply |
US11165642B2 (en) | 2018-03-26 | 2021-11-02 | At&T Intellectual Property I, L.P. | Processing of electromagnetic waves and methods thereof |
US11546258B2 (en) | 2018-03-30 | 2023-01-03 | At&T Intellectual Property I, L.P. | Method and apparatus for switching of data channels provided in electromagnetic waves |
US11632146B2 (en) | 2018-10-02 | 2023-04-18 | At&T Intellectual Property I, L.P. | Methods and apparatus for launching or receiving electromagnetic waves |
US10931012B2 (en) | 2018-11-14 | 2021-02-23 | At&T Intellectual Property I, L.P. | Device with programmable reflector for transmitting or receiving electromagnetic waves |
US10957977B2 (en) | 2018-11-14 | 2021-03-23 | At&T Intellectual Property I, L.P. | Device with virtual reflector for transmitting or receiving electromagnetic waves |
US10938104B2 (en) | 2018-11-16 | 2021-03-02 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a change in an orientation of an antenna |
US11082091B2 (en) | 2018-11-29 | 2021-08-03 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a power line |
US10965344B2 (en) | 2018-11-29 | 2021-03-30 | At&T Intellectual Property 1, L.P. | Methods and apparatus for exchanging wireless signals utilizing electromagnetic waves having differing characteristics |
US11171960B2 (en) | 2018-12-03 | 2021-11-09 | At&T Intellectual Property I, L.P. | Network security management based on collection and cataloging of network-accessible device information |
US11283182B2 (en) | 2018-12-03 | 2022-03-22 | At&T Intellectual Property I, L.P. | Guided wave launcher with lens and methods for use therewith |
US10977932B2 (en) | 2018-12-04 | 2021-04-13 | At&T Intellectual Property I, L.P. | Method and apparatus for electromagnetic wave communications associated with vehicular traffic |
US11205857B2 (en) | 2018-12-04 | 2021-12-21 | At&T Intellectual Property I, L.P. | System and method for launching guided electromagnetic waves with channel feedback |
US11362438B2 (en) | 2018-12-04 | 2022-06-14 | At&T Intellectual Property I, L.P. | Configurable guided wave launcher and methods for use therewith |
US11283177B2 (en) | 2019-12-02 | 2022-03-22 | At&T Intellectual Property I, L.P. | Surface wave transmission device with RF housing and methods for use therewith |
US11277159B2 (en) | 2019-12-03 | 2022-03-15 | At&T Intellectual Property I, L.P. | Method and apparatus for managing propagation delays of electromagnetic waves |
US10951266B1 (en) | 2019-12-03 | 2021-03-16 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable wrap wire and methods for use therewith |
US11502724B2 (en) | 2019-12-03 | 2022-11-15 | At&T Intellectual Property I, L.P. | Method and apparatus for transitioning between electromagnetic wave modes |
US11070250B2 (en) | 2019-12-03 | 2021-07-20 | At&T Intellectual Property I, L.P. | Method and apparatus for calibrating waveguide systems to manage propagation delays of electromagnetic waves |
US11356208B2 (en) | 2019-12-04 | 2022-06-07 | At&T Intellectual Property I, L.P. | Transmission device with hybrid ARQ and methods for use therewith |
US11223098B2 (en) | 2019-12-04 | 2022-01-11 | At&T Intellectual Property I, L.P. | Waveguide system comprising a scattering device for generating a second non-fundamental wave mode from a first non-fundamental wave mode |
US10992343B1 (en) | 2019-12-04 | 2021-04-27 | At&T Intellectual Property I, L.P. | Guided electromagnetic wave communications via an underground cable |
US10951267B1 (en) | 2019-12-04 | 2021-03-16 | At&T Intellectual Property I, L.P. | Method and apparatus for adapting a waveguide to properties of a physical transmission medium |
US11063334B2 (en) | 2019-12-05 | 2021-07-13 | At&T Intellectual Property I, L.P. | Method and apparatus having one or more adjustable structures for launching or receiving electromagnetic waves having a desired wavemode |
US11581917B2 (en) | 2019-12-05 | 2023-02-14 | At&T Intellectual Property I, L.P. | Method and apparatus adapted to a characteristic of an outer surface of a transmission medium for launching or receiving electromagnetic waves |
US11569868B2 (en) | 2021-03-17 | 2023-01-31 | At&T Intellectual Property I, L.P. | Apparatuses and methods for enhancing a reliability of power available to communicaton devices via an insulator |
US11533079B2 (en) | 2021-03-17 | 2022-12-20 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating guided wave communications with an enhanced flexibility in parameters |
US11456771B1 (en) | 2021-03-17 | 2022-09-27 | At&T Intellectual Property I, L.P. | Apparatuses and methods for facilitating a conveyance of status in communication systems and networks |
US11671926B2 (en) | 2021-03-17 | 2023-06-06 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating signaling and power in a communication system |
US11664883B2 (en) | 2021-04-06 | 2023-05-30 | At&T Intellectual Property I, L.P. | Time domain duplexing repeater using envelope detection |
Also Published As
Publication number | Publication date |
---|---|
DE1055068B (en) | 1959-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2949589A (en) | Microwave communication lines | |
US2797394A (en) | Electrical conductor having composite central dielectric member | |
US2769148A (en) | Electrical conductors | |
US4129841A (en) | Radiating cable having spaced radiating sleeves | |
US4399322A (en) | Low loss buoyant coaxial cable | |
US3870977A (en) | Radiating coaxial cable | |
US2848696A (en) | Electromagnetic wave transmission | |
US4408089A (en) | Extremely low-attenuation, extremely low radiation loss flexible coaxial cable for microwave energy in the gigaHertz frequency range | |
US2800634A (en) | Radio frequency transmission waveguides | |
US3219752A (en) | High frequency electrical lead-in cable | |
US2782251A (en) | Cables for high frequency use | |
US2994050A (en) | High frequency transmission line | |
US2626303A (en) | Perforated ribbon mounting for electrical conductors | |
US1976804A (en) | Transmission cable | |
US3372395A (en) | Vlf antenna | |
FI76449C (en) | band Management | |
CN111029698A (en) | Coaxial leaky cable for 5G signal transmission | |
US3864509A (en) | Coaxial cable whose dielectric partly consists of air | |
US1978418A (en) | Concentric return multiconductor cable | |
US2288900A (en) | Method of and means for making coaxial cables | |
US2583540A (en) | Means for discharging static electricity from airplane radio antennas | |
CN108091429B (en) | Differential signal cable | |
US2034047A (en) | Coaxial circuit with stranded inner conductor | |
US3971880A (en) | Phase stable transmission cable | |
KR100817981B1 (en) | A broadband leaky coaxial cable |