CN2724219Y - Single polarized oriented plate antenna feed structure - Google Patents
Single polarized oriented plate antenna feed structure Download PDFInfo
- Publication number
- CN2724219Y CN2724219Y CN 200420083284 CN200420083284U CN2724219Y CN 2724219 Y CN2724219 Y CN 2724219Y CN 200420083284 CN200420083284 CN 200420083284 CN 200420083284 U CN200420083284 U CN 200420083284U CN 2724219 Y CN2724219 Y CN 2724219Y
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- antenna
- feed
- feeding
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- 230000010287 polarization Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000005388 cross polarization Methods 0.000 abstract description 12
- 230000005672 electromagnetic field Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model discloses a single polarized oriented plate antenna feed structure comprising at least one feed group, and each feed group comprises two adjacent antenna units which are made up of square radiators; each feed group is fed by one feeding port, the feeding network comprises feeding nodes on the two antenna units, a signal distribution node, a transmission line which connects the feeding port with the signal distribution node and two feeders which are respectively connected from the signal distribution node to the feeding nodes of the two antenna units. The single polarized oriented plate antenna feed structure is characterized in that two feeders respectively peek in from the two adjacent parallel edges of the two antenna units of the feeding groups to proceed feeding. The anti-phase feeding can be carried out between the adjacent antenna units, the electromagnetic field component on the main direction of polarization of the antenna unit is not influenced, and simultaneously the purpose that the component on the cross polarization direction i.e. the horizontal direction can be compensated is achieved. The results are that the front-to-back ratio of antennas is improved obviously, the beam width of the horizontal plane is narrowed, and the cross polarization discrimination is improved.
Description
Technical field
The utility model relates to the feed structure of the directed plate antenna of single polarization, is particularly useful for a kind of feed structure that uses the directed plate antenna of single polarization of square radiant body.
Background technology
The directed plate antenna of the single polarization of square radiant body of the prior art adopts the homophase feed.As shown in Figure 1: port A feeding network of array antennas is made up of distributing point A1, A2, signal allocation node C and transmission line B1, B2, B3, and wherein distributing point A1 and distributing point A2 import in-phase signal, B2 and B3 equal in length to square radiant body in the signal emission process.Under this feeding classification, the electromagnetic field that the adjacent antenna radiant body produces all superposes in main pole direction and cross polarization durection component, but that the result after the cross polarization durection component stack will cause will be poor before and after the antenna, horizontal plane beamwidth broad and the not high defective of cross polarization discrimination, so, be necessary the feed structure of antenna is improved, with the stack of the energy of electromagnetic field of suppressing antenna radiating element radiation in the cross polarization direction.
The utility model content
The purpose of this utility model is to provide a kind of feed structure that can improve single-polarized antenna front and back ratio, astringent lotion collimated beam of sound width and improve cross polarization discrimination.
The technical solution of the utility model is: the directed tabular antenna feed structure of a kind of single polarization, comprise at least one feed group, and each feed group comprises two adjacent antenna elements that are made of square radiant body; Each feed group is by a feed port feed, its feeding network comprises the transmission line of two distributing point, signal allocation node, connection feed port and signal allocation nodes on the antenna element, and two feeder lines that are connected respectively to the distributing point of two antenna elements from the signal allocation node, it is characterized in that described two feeder lines are adjacent two parallel edges incision the carrying out feed of two antenna elements from the feed group respectively.
The distributing point of described antenna element is chosen on the axis of antenna element.
The length of described two feeder lines differs 1/2 center of antenna frequency wavelength.
The utility model is by to carrying out anti-phase feed between adjacent antenna units, making antenna element when not influencing the electromagnetic field component of antenna element on the main pole direction is that the horizontal direction component reaches the purpose that offsets in the cross polarization direction, its result will make before and after the antenna than have clear improvement, the horizontal plane beamwidth narrows down and cross polarization discrimination increases.
Description of drawings
Fig. 1 is the feed schematic diagram of the directed plate antenna of existing single polarization;
Fig. 2 is a feed principle schematic of the present utility model;
Fig. 3 is two antenna element floor map in the feed group of the present utility model;
Fig. 4 is the G-G profile of Fig. 3.
Embodiment
The utility model is specifically introduced by an embodiment below in conjunction with accompanying drawing.
Referring to Fig. 3 and Fig. 4, square feed paster E and square parasitic patch F are housed on reflecting plate D, this feed paster E and parasitic patch F form antenna element, this antenna element is the air microstrip structure, between promptly square feed paster E and the square parasitic patch F and the medium between square feed paster E and the reflecting plate D be air.
As Fig. 2, the antenna feeding network relevant with antenna current feed port a comprises the transmission line b1 of two distributing point a1, a2, signal allocation node c, connectivity port a and signal allocation node c on the antenna element, and be connected respectively on the distributing point of two antenna elements, thereby respectively to two the feeder line b2 and the b3 of their feeds from signal allocation node c.Each antenna element distributing point a1, a2 are chosen on the axis of antenna element.Two feeder lines are cut from the two adjacent parallel edges of antenna element respectively and are carried out feed.Article two, feeder line b2 and b3 length differ 1/2 center of antenna frequency wavelength.
In the signal emission process, respectively signal is introduced from two parallel edges that adjacent two antenna elements are adjacent, two antenna elements are carried out feed, and promptly to carrying out anti-phase feed between adjacent antenna units, making antenna element is that the horizontal direction component reaches and offsets in the cross polarization direction.Under the situation of anti-phase feed, if to the feeder line b2 and the b3 equal in length of two antenna element feeds, two antenna elements are because of being subjected to the excitation of this signal, are reverse at the electromagnetic field of main pole direction and horizontal polarization directions generation.For addressing this problem, feeding classification described in the utility model makes to differing 1/2 center of antenna frequency wavelength between two feeder line b2 of described two antenna element feeds and the b3, the pumping signal that then makes described two antenna elements receive is anti-phase, be phase phasic difference 180 degree, thereby make described two antenna elements superpose, and be able to offset at the horizontal polarization directions energy at the energy that the main pole direction produces.In the practical application, the length of transmission line b1 and feeder line b2 is decided according to the actual needed length of antenna.
The signal receiving course is the inverse process of signal emission process, in the signal receiving course, antenna element is an inversion signal at the signal that distributing point a1 and distributing point a2 are coupled to, make the signal of main pole direction with superimposed through feeder line b2, the feeder line b3 transmission back arriving signal distribution node c that differs 1/2 wavelength, the signal of cross polarization direction is cancelled each other.
Like this, finally can not influence antenna gain, also make before and after the antenna than have clear improvement, the horizontal plane beamwidth narrows down and cross polarization discrimination increases.
Claims (3)
1, the directed tabular antenna feed structure of a kind of single polarization comprises at least one feed group, and each feed group comprises two adjacent antenna elements that are made of square radiant body; Each feed group is by a feed port feed, its feeding network comprises the transmission line of two distributing point, signal allocation node, connection feed port and signal allocation nodes on the antenna element, and two feeder lines that are connected respectively to the distributing point of two antenna elements from the signal allocation node, it is characterized in that described two feeder lines are adjacent two parallel edges incision the carrying out feed of two antenna elements from the feed group respectively.
2, the directed tabular antenna feed structure of the described single polarization of claim 1 is characterized in that the distributing point of described antenna element is chosen on the axis of antenna element.
3, the directed tabular antenna feed structure of the described single polarization of claim 1 is characterized in that the length of described two feeder lines differs 1/2 center of antenna frequency wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083284 CN2724219Y (en) | 2004-08-23 | 2004-08-23 | Single polarized oriented plate antenna feed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083284 CN2724219Y (en) | 2004-08-23 | 2004-08-23 | Single polarized oriented plate antenna feed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2724219Y true CN2724219Y (en) | 2005-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420083284 Expired - Fee Related CN2724219Y (en) | 2004-08-23 | 2004-08-23 | Single polarized oriented plate antenna feed structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN2724219Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229072A (en) * | 2010-09-14 | 2013-07-31 | 罗伯特·博世有限公司 | Radar sensor for motor vehicles, especially rca sensor |
| CN105223540A (en) * | 2015-10-23 | 2016-01-06 | 成都九华圆通科技发展有限公司 | A kind of aircraft monitoring and direction finding system |
| CN105244612A (en) * | 2015-10-23 | 2016-01-13 | 成都九华圆通科技发展有限公司 | Min-sound antenna |
| CN105261820A (en) * | 2015-10-23 | 2016-01-20 | 成都九华圆通科技发展有限公司 | T-type dead spot antenna structure |
| CN105403855A (en) * | 2015-10-23 | 2016-03-16 | 成都九华圆通科技发展有限公司 | Monitoring direction finding system based on aircraft-borne direction finding device |
-
2004
- 2004-08-23 CN CN 200420083284 patent/CN2724219Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229072A (en) * | 2010-09-14 | 2013-07-31 | 罗伯特·博世有限公司 | Radar sensor for motor vehicles, especially rca sensor |
| CN103229072B (en) * | 2010-09-14 | 2015-07-22 | 罗伯特·博世有限公司 | Radar sensor for motor vehicles, especially RCA sensor |
| CN105223540A (en) * | 2015-10-23 | 2016-01-06 | 成都九华圆通科技发展有限公司 | A kind of aircraft monitoring and direction finding system |
| CN105244612A (en) * | 2015-10-23 | 2016-01-13 | 成都九华圆通科技发展有限公司 | Min-sound antenna |
| CN105261820A (en) * | 2015-10-23 | 2016-01-20 | 成都九华圆通科技发展有限公司 | T-type dead spot antenna structure |
| CN105403855A (en) * | 2015-10-23 | 2016-03-16 | 成都九华圆通科技发展有限公司 | Monitoring direction finding system based on aircraft-borne direction finding device |
| CN105223540B (en) * | 2015-10-23 | 2018-03-16 | 成都九华圆通科技发展有限公司 | A kind of aircraft monitoring and direction finding system |
| CN105403855B (en) * | 2015-10-23 | 2018-03-16 | 成都九华圆通科技发展有限公司 | A kind of monitoring and direction finding system that direction-finding equipment is carried based on aircraft |
| CN105244612B (en) * | 2015-10-23 | 2018-05-01 | 成都九华圆通科技发展有限公司 | A kind of small point of articulation antenna |
| CN105261820B (en) * | 2015-10-23 | 2018-05-08 | 成都九华圆通科技发展有限公司 | A kind of T-shaped small point of articulation antenna structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |