EP0929122A3 - Reflector based dielectric lens antenna system - Google Patents

Reflector based dielectric lens antenna system Download PDF

Info

Publication number
EP0929122A3
EP0929122A3 EP98121988A EP98121988A EP0929122A3 EP 0929122 A3 EP0929122 A3 EP 0929122A3 EP 98121988 A EP98121988 A EP 98121988A EP 98121988 A EP98121988 A EP 98121988A EP 0929122 A3 EP0929122 A3 EP 0929122A3
Authority
EP
European Patent Office
Prior art keywords
signals
polarity
antenna system
orthogonal
reflector
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.)
Withdrawn
Application number
EP98121988A
Other languages
German (de)
French (fr)
Other versions
EP0929122A2 (en
Inventor
Nicholas L. Muhlhauser
Kenneth P. Cannizzaro
Brian C. Hewett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
E*Star Inc
Original Assignee
E*Star Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/004,759 external-priority patent/US6087999A/en
Priority claimed from US09/110,687 external-priority patent/US6107897A/en
Priority claimed from US09/110,462 external-priority patent/US6181293B1/en
Application filed by E*Star Inc filed Critical E*Star Inc
Publication of EP0929122A2 publication Critical patent/EP0929122A2/en
Publication of EP0929122A3 publication Critical patent/EP0929122A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/025—Multimode horn antennas; Horns using higher mode of propagation
    • H01Q13/0258—Orthomode horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
    • H01Q19/175—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements arrayed along the focal line of a cylindrical focusing surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
    • H01Q25/008—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device lens fed multibeam arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2658—Phased-array fed focussing structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device

Abstract

A bifocal lens for use in a multiple beam antenna system including a reflector that is at least partially parabolic in one dimension and a pair of waveguides. Multiple received beams are received and reflected by the reflector into an orthogonal mode junction which separates signals of a first polarity from signals of a second orthogonal polarity. The signals of the first polarity are forwarded into a first waveguide and the orthogonal signals of the second polarity are forwarded into a second parallel waveguide. A plurality of satellites may be accessed simultaneously thus allowing the user to utilize both signals at the same time. The bifocal lenses may be located in the waveguides, respectively, with each lens including a step portion defined in at least one edge thereof for matching purposes.
EP98121988A 1998-01-08 1998-11-19 Reflector based dielectric lens antenna system Withdrawn EP0929122A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US110462 1980-01-08
US4759 1993-01-14
US09/004,759 US6087999A (en) 1994-09-01 1998-01-08 Reflector based dielectric lens antenna system
US110687 1998-07-07
US09/110,687 US6107897A (en) 1998-01-08 1998-07-07 Orthogonal mode junction (OMJ) for use in antenna system
US09/110,462 US6181293B1 (en) 1998-01-08 1998-07-07 Reflector based dielectric lens antenna system including bifocal lens

Publications (2)

Publication Number Publication Date
EP0929122A2 EP0929122A2 (en) 1999-07-14
EP0929122A3 true EP0929122A3 (en) 2000-08-09

Family

ID=27357702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121988A Withdrawn EP0929122A3 (en) 1998-01-08 1998-11-19 Reflector based dielectric lens antenna system

Country Status (4)

Country Link
EP (1) EP0929122A3 (en)
AU (1) AU2450999A (en)
CA (1) CA2254139A1 (en)
WO (1) WO1999035710A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001251381A1 (en) * 2000-04-07 2001-10-30 Gilat Satellite Networks Multi-feed reflector antenna

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087822A (en) * 1976-08-26 1978-05-02 Raytheon Company Radio frequency antenna having microstrip feed network and flared radiating aperture
JPS5497349A (en) * 1978-01-19 1979-08-01 Mitsubishi Electric Corp Bifocal lens antenna
US4187507A (en) * 1978-10-13 1980-02-05 Sperry Rand Corporation Multiple beam antenna array
JPS5547704A (en) * 1978-10-03 1980-04-04 Toshiba Corp Multi-beam antenna
JPS58200605A (en) * 1982-05-18 1983-11-22 Nippon Telegr & Teleph Corp <Ntt> Reflecting mirror antenna
US4489331A (en) * 1981-01-23 1984-12-18 Thomson-Csf Two-band microwave antenna with nested horns for feeding a sub and main reflector
US5495258A (en) * 1994-09-01 1996-02-27 Nicholas L. Muhlhauser Multiple beam antenna system for simultaneously receiving multiple satellite signals
US5686923A (en) * 1994-05-10 1997-11-11 Dasault Electronique Multi-beam antenna for receiving microwaves emanating from several satellites

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170158A (en) * 1963-05-08 1965-02-16 Rotman Walter Multiple beam radar antenna system
US4467329A (en) * 1981-05-27 1984-08-21 General Electric Company Loaded waveguide lenses
US4511868A (en) * 1982-09-13 1985-04-16 Ball Corporation Apparatus and method for transfer of r.f. energy through a mechanically rotatable joint
US4660050A (en) * 1983-04-06 1987-04-21 Trw Inc. Doppler radar velocity measurement horn
US5528717A (en) * 1994-06-10 1996-06-18 The United States Of America As Represented By The Secretary Of The Army Hybrid dielectric slab beam waveguide

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087822A (en) * 1976-08-26 1978-05-02 Raytheon Company Radio frequency antenna having microstrip feed network and flared radiating aperture
JPS5497349A (en) * 1978-01-19 1979-08-01 Mitsubishi Electric Corp Bifocal lens antenna
JPS5547704A (en) * 1978-10-03 1980-04-04 Toshiba Corp Multi-beam antenna
US4187507A (en) * 1978-10-13 1980-02-05 Sperry Rand Corporation Multiple beam antenna array
US4489331A (en) * 1981-01-23 1984-12-18 Thomson-Csf Two-band microwave antenna with nested horns for feeding a sub and main reflector
JPS58200605A (en) * 1982-05-18 1983-11-22 Nippon Telegr & Teleph Corp <Ntt> Reflecting mirror antenna
US5686923A (en) * 1994-05-10 1997-11-11 Dasault Electronique Multi-beam antenna for receiving microwaves emanating from several satellites
US5495258A (en) * 1994-09-01 1996-02-27 Nicholas L. Muhlhauser Multiple beam antenna system for simultaneously receiving multiple satellite signals

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 003, no. 119 (E - 142) 6 October 1979 (1979-10-06) *
PATENT ABSTRACTS OF JAPAN vol. 004, no. 079 (E - 014) 7 June 1980 (1980-06-07) *
PATENT ABSTRACTS OF JAPAN vol. 008, no. 044 (E - 229) 25 February 1984 (1984-02-25) *

Also Published As

Publication number Publication date
CA2254139A1 (en) 1999-07-08
WO1999035710A9 (en) 2001-11-01
WO1999035710A1 (en) 1999-07-15
EP0929122A2 (en) 1999-07-14
AU2450999A (en) 1999-07-26

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