CN104466412A - Broadband dual-polarization feed source - Google Patents
Broadband dual-polarization feed source Download PDFInfo
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- CN104466412A CN104466412A CN201410817426.6A CN201410817426A CN104466412A CN 104466412 A CN104466412 A CN 104466412A CN 201410817426 A CN201410817426 A CN 201410817426A CN 104466412 A CN104466412 A CN 104466412A
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- printed board
- metal tape
- horizontal polarization
- tape line
- feed source
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Abstract
The invention discloses a broadband dual-polarization feed source in the field of wireless communication and radio astronomy. The broadband dual-polarization feed source is composed of four sets of radiation oscillators and two impedance synthetic printed boards. The radiation oscillators form a log-periodic dipole array, the two sets of radiation oscillators which are placed in an orthogonal mode are connected with the two impedance synthetic printed boards which are placed in an orthogonal mode respectively, the two ends of each left metal strap of the impedance synthetic printed boards are connected with corresponding left pins of the two sets of radiation oscillators in a one-to-one corresponding mode, the two ends of each right metal strap of the impedance synthetic printed boards are connected with corresponding right pins of the two sets of radiation oscillators in a one-to-one corresponding mode, and therefore the switching to two coaxial interfaces from eight ports is achieved. The feed source is simple in feed network structure, small in feeder loss, high in feed efficiency, compact in structure, low in manufacturing cost and particularly suitable for the feed source or an antenna or a feed network of the feed source or the antenna when the feed source or the antenna or the feed network works under the broadband application situation.
Description
Technical field
The present invention relates to a kind of broadband feed of communication, broadband direction finding, remote measurement, remote sensing and radio astronomy technical field.
Background technology
Broadband feed can greatly reduce feed quantity, reduces antenna aperture, has the technical characterstics such as multi-functional, multipurpose, comprehensive integration.Exactly because there are these advantages, so it has demand widely in military, civilian and astronomy field.
Current broadband feed mainly contains several as follows: logarithmic spiral feed, row wave resonance (TWR) feed, logarithm period feed, SINUOUS feed etc.But this several feed application has certain limitation, is embodied in:
Logarithmic spiral feed: single rotation direction broadband reception, cannot realize double rotational directions and receive simultaneously;
Row wave resonance (TWR) feed: broadband double-circle polarization receives, and antenna pattern is large with frequency change;
Logarithm period feed: synthetic wideband circular polarization difficulty is comparatively large, and phase center is large with frequency change;
SINUOUS feed: antenna is bidirectional radiation, uses as feed, need increase back of the body chamber and realize one-way radiation, and back of the body chamber difficult design is large, and frequency bandwidth is inadequate, and phase center is larger with frequency change.
Therefore study the feed of a kind of phase center not with frequency change necessary, and difficult point is just the selection of feeding classification.
At present for the broadband feed that phase center is constant, there is multiple feeding classification.Here mainly introduce a kind of version of coaxial cable direct feed, this form structure is simple, and cost is low, is easy to realize.
Summary of the invention
The object of the present invention is to provide a kind of broadband bipolar feed source, by perpendicular polarization impedance synthesis printed board, horizontal polarization impedance synthesis printed board, make the antenna of 8 ports be reduced to 2 ports to export, be specially adapted to be operated in the feeding network of feed under broadband dual-linear polarization or double-circle polarization applicable cases or antenna.
The technical solution used in the present invention is:
A kind of broadband bipolar feed source, comprises radiating doublet and feeding network, it is characterized in that: described radiating doublet is two groups and is relatively set into V-shape, often organizes radiating doublet and is respectively arranged with left pin and right pin; Described feeding network comprises impedance synthesis printed board, and the upper surface of impedance synthesis printed board is provided with wide left metal tape line and right metal tape line; The two ends of left metal tape line and the left pin of two groups of radiating doublets connect one to one, and the two ends of right metal tape line and the right pin of two groups of radiating doublets connect one to one; The left intermediate node of metal tape line is connected with the inner wire of coaxial interface, and the right intermediate node of metal tape line is connected with the outer conductor of coaxial interface.
Described radiating doublet is logarithmically periodic dipole array.
Described radiating doublet is perpendicular polarization radiating doublet, and described impedance synthesis printed board is perpendicular polarization impedance synthesis printed board, and described coaxial interface is perpendicular polarization coaxial interface.
Also comprise horizontal polarization radiating doublet and a horizontal polarization impedance synthesis printed board that two groups are relatively set into V-shape, and the orthogonal thereto placement identical with two groups of perpendicular polarization radiating doublet structures of two groups of horizontal polarization radiating doublets, horizontal polarization impedance synthesis printed board and perpendicular polarization impedance are synthesized the identical and orthogonal thereto layering of printed board structure and are placed; The two ends of left metal tape line and the left pin of two groups of horizontal polarization radiating doublets of horizontal polarization impedance synthesis printed board connect one to one, and the two ends of right metal tape line and the right pin of two groups of horizontal polarization radiating doublets of horizontal polarization impedance synthesis printed board connect one to one; The intermediate node of the left metal tape line of horizontal polarization impedance synthesis printed board is connected with the inner wire of horizontal polarization coaxial interface, and the intermediate node of the right metal tape line of horizontal polarization impedance synthesis printed board is connected with the outer conductor of horizontal polarization coaxial interface
Horizontal polarization impedance synthesis printed board and perpendicular polarization impedance are synthesized between printed board and are arranged for insulating.
Passive matching network is connected with at left metal tape line and right metal tape line.
Beneficial effect acquired by the present invention is:
Signal syntheses is realized by upper and lower two-layer synthesis printed board, 10dB beamwidth, the metastable phase center changed such as designed feed is had in broad frequency band compare, these advantages can greatly reduce feed quantity, reduce antenna aperture, all have in the field such as radio astronomy, autotracking and apply more widely.
Accompanying drawing illustrates:
Fig. 1 is feed general structure schematic diagram.
Fig. 2 is the structural representation of V-shape perpendicular polarization radiating doublet.
Fig. 3 is the structural representation of V-shape horizontal polarization radiating doublet.
Fig. 4 is perpendicular polarization impedance synthesis printed board schematic diagram.
Fig. 5 is horizontal polarization impedance synthesis printed board schematic diagram.
Fig. 6 is the structural representation of coaxial interface 3.
Fig. 7 is the structural representation of coaxial interface 4.
Fig. 8 is the structural representation that insulation is arranged.
Embodiment
Below, the invention will be further described for composition graphs 1 to Fig. 8.
The present invention includes radiating doublet 1 and feeding network 2, radiating doublet 1 is two groups and is orthogonally arranged to V-shape, the left pin 11a of perpendicular polarization radiating doublet 11 is connected with the left metal tape line 21a correspondence of perpendicular polarization impedance synthesis printed board 21, the left intermediate node 21c of metal tape line 21a is connected with the inner wire 31 of coaxial interface 3, the right pin 11b of perpendicular polarization radiating doublet 11 is connected with the right metal tape line 21b correspondence of perpendicular polarization impedance synthesis printed board 21, and the right intermediate node 21d of metal tape line 21b is connected with the outer conductor 32 of coaxial interface 3; The left pin 12a of horizontal polarization radiating doublet 12 is connected with the left metal tape line 22a correspondence of horizontal polarization impedance synthesis printed board 22, the left intermediate node 22c of metal tape line 22a is connected with the inner wire 41 of coaxial interface 4, the right pin 12b of horizontal polarization radiating doublet 12 is connected with the right metal tape line 22b correspondence of horizontal polarization impedance synthesis printed board 22, and the right intermediate node 22d of metal tape line 22b is connected with the outer conductor 42 of coaxial interface 4; Perpendicular polarization impedance synthesis printed board 21 and horizontal polarization impedance are synthesized for insulation arranges 5 between printed board 22, and left metal tape line 21a and the right metal tape line 21b of perpendicular polarization impedance synthesis printed board 21 are connected with passive matching network 61.Left metal tape line 22a and the right metal tape line 22b of horizontal polarization impedance synthesis printed board 22 are connected with passive matching network 62.
Concise and to the point operation principle of the present invention:
The left and right metal tape line of impedance synthesis printed board is connected with the left and right pin of two groups of V-shape radiating doublets, the left and right metal tape line of the another one impedance synthesis printed board of orthogonal placement is connected with the left and right pin of other two groups of V-shape radiating doublets, the left intermediate node of metal tape line of each impedance synthesis printed board is connected with the inner wire of coaxial interface, and the right intermediate node of metal tape line is connected with the outer conductor of coaxial interface.Realize the transformation of 8 ports to 2 coaxial interfaces.
Claims (6)
1. a broadband bipolar feed source, comprises radiating doublet and feeding network, it is characterized in that: described radiating doublet is two groups and is relatively set into V-shape, often organizes radiating doublet and is respectively arranged with left pin and right pin; Described feeding network comprises impedance synthesis printed board, and the upper surface of impedance synthesis printed board is provided with wide left metal tape line and right metal tape line; The two ends of left metal tape line and the left pin of two groups of radiating doublets connect one to one, and the two ends of right metal tape line and the right pin of two groups of radiating doublets connect one to one; The left intermediate node of metal tape line is connected with the inner wire of coaxial interface, and the right intermediate node of metal tape line is connected with the outer conductor of coaxial interface.
2. a kind of broadband bipolar feed source according to claim 1, is characterized in that: described radiating doublet is logarithmically periodic dipole array.
3. a kind of broadband bipolar feed source according to claim 1, it is characterized in that: described radiating doublet is perpendicular polarization radiating doublet, described impedance synthesis printed board is perpendicular polarization impedance synthesis printed board, and described coaxial interface is perpendicular polarization coaxial interface.
4. a kind of broadband bipolar feed source according to claim 3, it is characterized in that: also comprise horizontal polarization radiating doublet and a horizontal polarization impedance synthesis printed board that two groups are relatively set into V-shape, and the orthogonal thereto placement identical with two groups of perpendicular polarization radiating doublet structures of two groups of horizontal polarization radiating doublets, horizontal polarization impedance synthesis printed board and perpendicular polarization impedance are synthesized the identical and orthogonal thereto layering of printed board structure and are placed; The two ends of left metal tape line and the left pin of two groups of horizontal polarization radiating doublets of horizontal polarization impedance synthesis printed board connect one to one, and the two ends of right metal tape line and the right pin of two groups of horizontal polarization radiating doublets of horizontal polarization impedance synthesis printed board connect one to one; The intermediate node of the left metal tape line of horizontal polarization impedance synthesis printed board is connected with the inner wire of horizontal polarization coaxial interface, and the intermediate node of the right metal tape line of horizontal polarization impedance synthesis printed board is connected with the outer conductor of horizontal polarization coaxial interface.
5. a kind of broadband bipolar feed source according to claim 4, is characterized in that: horizontal polarization impedance synthesis printed board and perpendicular polarization impedance are synthesized between printed board and arranged for insulating.
6. a kind of broadband bipolar feed source according to claim 1, is characterized in that: be connected with passive matching network at left metal tape line and right metal tape line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817426.6A CN104466412B (en) | 2014-12-25 | 2014-12-25 | Broadband dual-polarization feed source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817426.6A CN104466412B (en) | 2014-12-25 | 2014-12-25 | Broadband dual-polarization feed source |
Publications (2)
| Publication Number | Publication Date |
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| CN104466412A true CN104466412A (en) | 2015-03-25 |
| CN104466412B CN104466412B (en) | 2017-04-12 |
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| CN201410817426.6A Active CN104466412B (en) | 2014-12-25 | 2014-12-25 | Broadband dual-polarization feed source |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080212526A1 (en) * | 2007-03-02 | 2008-09-04 | Ozgur Oyman | Link adaptation and antenna selection in cooperative multiple access systems |
| CN101609931A (en) * | 2008-06-20 | 2009-12-23 | 电子科技大学 | Antenna array phase control technology and system thereof based on the time modulation realize |
| CN103401625A (en) * | 2013-08-23 | 2013-11-20 | 西安电子科技大学 | Particle swarm optimization algorithm based cooperative spectrum sensing optimization method |
| EP2744042A1 (en) * | 2012-12-11 | 2014-06-18 | BAE Systems PLC | Time modulated antenna array with optical switches |
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2014
- 2014-12-25 CN CN201410817426.6A patent/CN104466412B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080212526A1 (en) * | 2007-03-02 | 2008-09-04 | Ozgur Oyman | Link adaptation and antenna selection in cooperative multiple access systems |
| CN101609931A (en) * | 2008-06-20 | 2009-12-23 | 电子科技大学 | Antenna array phase control technology and system thereof based on the time modulation realize |
| EP2744042A1 (en) * | 2012-12-11 | 2014-06-18 | BAE Systems PLC | Time modulated antenna array with optical switches |
| CN103401625A (en) * | 2013-08-23 | 2013-11-20 | 西安电子科技大学 | Particle swarm optimization algorithm based cooperative spectrum sensing optimization method |
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| CN104466412B (en) | 2017-04-12 |
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