CN102694264A - Feed source linear polarization loudspeaker with broad band ranging from 1GHz to 4GHz - Google Patents
Feed source linear polarization loudspeaker with broad band ranging from 1GHz to 4GHz Download PDFInfo
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- CN102694264A CN102694264A CN201210175451XA CN201210175451A CN102694264A CN 102694264 A CN102694264 A CN 102694264A CN 201210175451X A CN201210175451X A CN 201210175451XA CN 201210175451 A CN201210175451 A CN 201210175451A CN 102694264 A CN102694264 A CN 102694264A
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- loudspeaker
- feed source
- linear polarization
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Abstract
The invention belongs to the technical field of microwave antennas, and particularly relates to a feed source linear polarization loudspeaker with a broad band ranging from 1GHz to 4GHz. Feeding of the feed source linear polarization loudspeaker is performed by an N-type coaxial interface. The feed source linear polarization loudspeaker is characterized in that metal ridges are radially arranged on the inner circumference of a conical loudspeaker and equally divided into six groups, and the direction of an electric field is parallel to a plane of excitation ridges during feeding. The metal ridges form a logarithmically changing curve, teflon plates are disposed on two sides of an excitation ridge group of the metal ridges, and broad bands circular waveguide excitation sections of the loudspeaker are matched. The feed source linear polarization loudspeaker has the advantages that secondary patterns and antenna gain which meet indexes can be obtained within the working band width ranging from 1GHz to 4GHz as compared with a corrugated loudspeaker feed source; the geometric dimensions of a feed source are greatly reduced; the feed source is greatly lightened; and the processing cost of the feed source is also lowered. The feed source linear polarization loudspeaker can be widely applied to the field of electronic countermeasure urgently needing broadband feed source antennas, and has high market and economical benefits.
Description
Technical field
The invention belongs to the microwave antenna technical field, be specifically related to a kind of 1-4GHz broadband feed linear polarization loudspeaker with N type coaxial interface feed.
Background technology
At present, domestic used 1-4GHz feed is traditional corrugated horn, complex structure, and processing cost is high, and size is big, Heavy Weight.
According to external IRE Trans. Antennas Propagat.; Vol.AP-9, pp.223-224, Mar.1961 document; Openly come a kind of " paraboloidal frequency multiplication bandwidth Feed Horn "; Describe a broadband Feed Horn, when it is installed in the focus of parabolic dish, can obtain the E face and the H surface radiation directional diagram of gradeization.The cross section in Feed Horn (Fig. 1) aperture is round, and is operated in TE
11The waveguide basic mode.Borrow the quadruple ridge of feed horn circular waveguide to load, can obtain TE in broad frequency range very
11The single mode operation of mould.Having built up an antenna of being made up of the loudspeaker of the parabolic dish focus that is contained in f/D=0.42 is the radiation direction that is used for verifying completed antenna.The result of these tests be illustrated in E that frequency 15.1 and 30.2KMc survey and H plane pattern have equal 1.2 spend half-power beam widths and be lower than main beam at least-the primary flat secondary lobe of 23dB.
Do not provide the directional diagram that adds ridged horn in the document; And added the unknown circular waveguide of a segment length outside the ridge section adding; The applicant has made the experiment loudspeaker of the ridge that just accompanying each other for this reason; Surveyed its E, H plane pattern, the E, H plane pattern that finds below feed level-10dB it be grade not significantly just.
Summary of the invention
The objective of the invention is to survey a kind of 1-4GHz broadband feed linear polarization loudspeaker that reflector antenna development broadband feed proposes for small-signal.
Main technical schemes of the present invention: 1-4GHz broadband feed linear polarization loudspeaker is characterized in that 6 five equilibriums radially are provided with the metal ridge sheet on the conical horn inner periphery, direction of an electric field and the plane parallel that encourages ridge during feed.
Said metal ridge sheet is the logarithm change curve; Wherein, the excitation of a group in metal ridge sheet ridge both sides are provided with polyfluortetraethylene plate.
The Broadband Matching of the circular waveguide activation fragment of said loudspeaker promptly encourages the Broadband Matching of the metal ridge sheet of ridge both sides through two short-circuiting bars realization circular waveguide activation fragments of loudspeaker rear end.
The present invention is a kind of 1-4GHz broadband feed linear polarization loudspeaker with N type coaxial interface feed, and three pairs of metal ridge sheets of loudspeaker conical section make changes such as E, H plane pattern; The Broadband Matching of loudspeaker circular waveguide activation fragment; Excitation ridge both sides add the polytetrafluoroethylene plate, guarantee the consistency of directional diagram in the broadband.
Beneficial effect of the present invention mainly contains: 1) compare with the corrugated horn feed, in the 1-4GHz bandwidth of operation, can be met the secondary pattern and the antenna gain of index; 2) physical dimension of feed reduces greatly; 3) weight of feed reduces greatly; 4) processing cost of feed also greatly reduces.
The present invention can be widely used in being badly in need of the electronic countermeasures field of broadband feed antenna, has the market economy benefit.
Description of drawings
Accompanying drawing 1 is an embodiment of the invention horn structure schematic perspective view; Fig. 2 is the rear perspective sketch map of embodiment loudspeaker; Fig. 3 is the E plane pattern of embodiment loudspeaker; Fig. 4 is the H plane pattern of embodiment loudspeaker; Fig. 5 is the curvilinear coordinate figure of embodiment loudspeaker metal ridge sheet.
In the accompanying drawing, 1-conical horn; 2-metal ridge sheet; 3-polyfluortetraethylene plate; 4-excitation ridge; 5-short-circuiting bar.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in detail.
Embodiment
Present embodiment 1-4GHz broadband feed linear polarization horn structure is like accompanying drawing 1, shown in 2; Mainly comprise the conical horn main body; Its main feature is that 6 five equilibriums radially are provided with metal ridge sheet 2 on conical horn 1 inner periphery, direction of an electric field and the plane parallel that encourages ridge 4 during feed.Said metal ridge sheet 2 is the logarithm change curve, and wherein, one group of excitation ridge 4 both sides in the metal ridge sheet are provided with polyfluortetraethylene plate 3.
Shown in accompanying drawing 2, be provided with two short-circuiting bars 5 in the rear end of conical horn 1, promptly encourage the Broadband Matching of the metal ridge sheet 2 of ridge 4 both sides through two short-circuiting bars, the 5 realization circular waveguide activation fragments of loudspeaker rear end.
From figure, can find out beneficial effect of the present invention: 1) compare, in the 1-4GHz bandwidth of operation, can be met the secondary pattern and the antenna gain of index with the corrugated horn feed; 2) former corrugated horn feed full-size: ￠ 378 * 870mm; The full-size of feed of the present invention: ￠ 220 * 272.5mm, the physical dimension of feed reduces greatly; 3) former corrugated horn feed weight 28.8Kg; Feed weight 8.8Kg of the present invention, the weight of feed reduces greatly; 4) processing cost of feed also greatly reduces.
Claims (4)
1. 1-4GHz broadband feed linear polarization loudspeaker is characterized in that 6 five equilibriums radially are provided with the metal ridge sheet on the conical horn inner periphery, direction of an electric field and the plane parallel that encourages ridge during feed.
2. loudspeaker as claimed in claim 1 is characterized in that said metal ridge sheet is the logarithm change curve.
3. according to claim 1 or claim 2 loudspeaker is characterized in that one group of excitation ridge both sides in the metal ridge sheet are provided with polyfluortetraethylene plate.
4. loudspeaker as claimed in claim 1 is characterized in that encouraging the Broadband Matching of the metal ridge sheet of ridge both sides through two short-circuiting bars realization circular waveguide activation fragments of loudspeaker rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175451XA CN102694264A (en) | 2012-05-31 | 2012-05-31 | Feed source linear polarization loudspeaker with broad band ranging from 1GHz to 4GHz |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175451XA CN102694264A (en) | 2012-05-31 | 2012-05-31 | Feed source linear polarization loudspeaker with broad band ranging from 1GHz to 4GHz |
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| Publication Number | Publication Date |
|---|---|
| CN102694264A true CN102694264A (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210175451XA Pending CN102694264A (en) | 2012-05-31 | 2012-05-31 | Feed source linear polarization loudspeaker with broad band ranging from 1GHz to 4GHz |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956977A (en) * | 2012-11-30 | 2013-03-06 | 南京友荏电子科技有限公司 | One-line polarizing six-edge conical horn |
| CN108470983A (en) * | 2018-03-28 | 2018-08-31 | 西安交通大学 | A kind of electromagnetic horn with inserted sheet |
| CN109672024A (en) * | 2018-11-23 | 2019-04-23 | 中国电子科技集团公司第二十九研究所 | A kind of implementation method and structure of wide band high-gain broad beam inclined polarization electromagnetic horn |
| US10587031B2 (en) | 2017-05-04 | 2020-03-10 | RF Elements SRO | Quick coupling assemblies |
| CN113889745A (en) * | 2021-09-30 | 2022-01-04 | 北京星英联微波科技有限责任公司 | Compact broadband circularly polarized antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411587Y (en) * | 1999-11-29 | 2000-12-20 | 中国科学院紫金山天文台 | Multi-ridge horn antenna |
| US20030210197A1 (en) * | 2002-05-08 | 2003-11-13 | Lockheed Martin Corporation | Multiple mode broadband ridged horn antenna |
| CN1691414A (en) * | 2004-04-20 | 2005-11-02 | Tdk股份有限公司 | Dual- and quad-ridged horn antenna with improved antenna pattern characteristics |
-
2012
- 2012-05-31 CN CN201210175451XA patent/CN102694264A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411587Y (en) * | 1999-11-29 | 2000-12-20 | 中国科学院紫金山天文台 | Multi-ridge horn antenna |
| US20030210197A1 (en) * | 2002-05-08 | 2003-11-13 | Lockheed Martin Corporation | Multiple mode broadband ridged horn antenna |
| CN1691414A (en) * | 2004-04-20 | 2005-11-02 | Tdk股份有限公司 | Dual- and quad-ridged horn antenna with improved antenna pattern characteristics |
Non-Patent Citations (2)
| Title |
|---|
| TOMMI LAITINEN, JANNE ILVONEN: "A 6-ridge horn antenna for spherical near-field antenna measurements", 《ANTENNAS AND PROPAGATION, 2009. EUCAP 2009. 3RD EUROPEAN CONFERENCE ON 》 * |
| 蒋颉、刘培国、何建国: "宽频带、双极化、四脊喇叭天线的设计", 《2009年全国天线年会》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956977A (en) * | 2012-11-30 | 2013-03-06 | 南京友荏电子科技有限公司 | One-line polarizing six-edge conical horn |
| US10587031B2 (en) | 2017-05-04 | 2020-03-10 | RF Elements SRO | Quick coupling assemblies |
| US11367941B2 (en) | 2017-05-04 | 2022-06-21 | RF Elements SRO | Quick coupling assemblies |
| CN108470983A (en) * | 2018-03-28 | 2018-08-31 | 西安交通大学 | A kind of electromagnetic horn with inserted sheet |
| CN108470983B (en) * | 2018-03-28 | 2020-10-27 | 西安交通大学 | Horn antenna with inserting sheet |
| CN109672024A (en) * | 2018-11-23 | 2019-04-23 | 中国电子科技集团公司第二十九研究所 | A kind of implementation method and structure of wide band high-gain broad beam inclined polarization electromagnetic horn |
| CN113889745A (en) * | 2021-09-30 | 2022-01-04 | 北京星英联微波科技有限责任公司 | Compact broadband circularly polarized antenna |
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Application publication date: 20120926 |