CN203288761U - Double-wave band double-circular polarization co-caliber reflection surface antenna - Google Patents
Double-wave band double-circular polarization co-caliber reflection surface antenna Download PDFInfo
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- CN203288761U CN203288761U CN2013201691169U CN201320169116U CN203288761U CN 203288761 U CN203288761 U CN 203288761U CN 2013201691169 U CN2013201691169 U CN 2013201691169U CN 201320169116 U CN201320169116 U CN 201320169116U CN 203288761 U CN203288761 U CN 203288761U
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- wave band
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- feed source
- reflection surface
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Abstract
The utility model discloses a double-wave band double-circular polarization co-caliber reflection surface antenna comprising a main reflection surface (1), an auxiliary reflection surface (2), an X-wave band feed source (3), and an S-wave band feed source (4). The X-wave band feed source (3) and the S-wave band feed source (4) adopt the double-circular polarization technology, and share the main reflection surface (1) and the auxiliary reflection surface (2), and are disposed on a real focus of the auxiliary reflection surface. The S-wave band feed source is disposed around the X-wave band feed source, and an electric axis of the X-wave band feed source is superposed with an electric axis of the S-wave band feed source. The X-wave band feed source and the S-wave band feed source are driven by the same servo mechanism, and can be used for the fallback after being combined together. The antenna is advantageous in that the X-wave band feed source and the S-wave band feed source can be used for the fallback after being combined together, and therefore the structure can be more compact and reasonable, the size can be greatly reduced, and the superposition of the electric axes can be realized.
Description
Technical field
The utility model relates to a kind of vehicular pulse instrumentation radar two waveband double-circle polarization bore reflector antenna altogether.
Background technology
In modern radar system, along with the raising of the system integration and functional requirement, an antenna often must be operated in a plurality of frequency ranges simultaneously, and this is a new trend of radar development.In addition, along with the development of mobile communications industry, the equipment that uses on moving body is more and more, and the antenna number of use is also in corresponding increase.Situation using a plurality of frequency ranges, take up room for reducing costs and reducing, the multifrequency of antenna, and two (many) wave band antennas are important development directions of radar.Shared-Aperture Dual-Band Dual-Polarized (DBDP) microstrip antenna array of prior art S/X wave band synthetic aperture radar, be that S-band gap and X-band paster are staggered, and realizes the frequency ratio of 1:3 under common bore structure.In the design of two wave band radiating elements, adopted and adopted reactive to load to reduce gap and cavity size in the design in gap, S-band microstrip-fed back of the body chamber, loaded to improve interport isolation by the groove to main paster in the design of X-band double-layer paster.Prior art vehicular pulse instrumentation radar requires circular polarized antenna to utilize target to guide from band signal in early stage, then transfers radar tracking to, and guiding is different from the tracking wave band, needs the antenna of 2 different frequency ranges to realize respectively guiding and following function., if adopt traditional single band antenna, need two cover servomechanisms to drive the antenna of two different-wavebands; The device space that needs is large; It is consistent that guide antenna both and tracking antenna electric axis are not easy to accomplish, turns while following the tracks of possible lose objects in guiding.
Summary of the invention
Task of the present utility model provides a kind of compact conformation, is beneficial to and realizes Radar Miniaturization, and the two waveband double-circle polarization that only needs a cover servomechanism to drive two different-wavebands shares reflector antenna,
The technical scheme that its technical problem that solves the utility model adopts is: a kind of two waveband double-circle polarization shares reflector antenna, comprise, X-band feed 3 and the S-band feed 4 of primary reflection surface 1, subreflector 2, employing double-circle polarization, it is characterized in that, X-band feed and S-band feed share a major and minor reflecting surface of cover, all be positioned on the real focus of subreflector, the S-band feed is looped around around the X-band feed, and the X-band feed overlaps with the electric axis of S-band feed, use same servomechanism to drive, combine and carry out rear feed.
The utility model has following beneficial effect than prior art:
The utility model employing X-band feed and S-band feed are combined and are carried out rear feed, make structure compact and reasonable more, and volume reduces greatly, and has realized the electric axis coincidence.The two waveband that adopts shares reflector antenna and can use the same antenna realization guiding of two different-wavebands of same servo-drive and follow the tracks of, and has simplified greatly equipment amount, and has guaranteed to be turned by guiding the precision problem of tracking.The S-band feed is looped around around the X-band feed, and two wave bands share cover major-minor reflectings surface, can the simplified apparatus amount, and can guarantee to be turned by guiding the common bore reflector antenna of two waveband double-circle polarization of the precision of tracking.
Adopt the utility model X-band feed 3 and S-band feed 4 electric axis to overlap the two waveband double-circle polarization reflector antenna that forms, only need a cover servomechanism to drive the same antenna of two different-wavebands, simplified greatly equipment amount; Save to a great extent the device space, alleviated the weight of radar, more be conducive to realize the miniaturization of radar; The polarization mode of X-band feed and S-band feed all adopts double-circle polarization, and feeding classification all adopts the rear feed mode, and guide antenna overlaps with the tracking antenna electric axis, has improved greatly the guiding probability.
Description of drawings
Below in conjunction with specification drawings and specific embodiments, the utility model is further illustrated.
Fig. 1 is that the utility model two waveband shares the reflector antenna organigram.
Fig. 2 is the equivalent schematic that the utility model two waveband shares reflector antenna.
Fig. 3 is X-band feed pictorial diagram.
Fig. 4 is S-band feed pictorial diagram.
In figure: 1. primary reflection surface, 2. subreflector, 3.X wave band feed source, 4.S wave band feed source, 5 electric axis.
Embodiment
Consult Fig. 1-Fig. 4.Share in reflector antenna enforcement in pulse instrumentation radar X described below, S two waveband, the two waveband reflector antenna is comprised of primary reflection surface 1, subreflector 2, X-band feed 3 and S-band feed 4.Wherein, primary reflection surface 1 is a paraboloid of revolution, subreflector is a hyperboloid of revolution, the right focus of hyperboloid concave surface overlaps with paraboloidal focus, the phase center of X-band feed 3 and S-band feed 4 all is placed in the right focus of subreflector 2 convex surfaces, has so just formed the Cassegrain antenna of standard.X-band feed and S-band feed share a major and minor reflecting surface of cover, and the S-band feed is looped around around the X-band feed, and the polarization mode of X-band feed and S-band feed all adopts double-circle polarization, and feeding classification all adopts rear feed.The S-band feed is looped around around the X-band feed, and two wave bands share a cover major-minor reflecting surface.
The X-band feed is fixed on subreflector (hyperboloid) near on the focus of primary reflection surface, adopt five loudspeaker forms shown in Figure 3, combined by five square opening footpath diagonal horns, the S-band feed is looped around around the X-band feed, adopts quaternary circular patch antenna form.The S-band feed adopts the quaternary paster antenna, as shown in Figure 4, four circular patch antennas around the X-band feed, consists of.When the primary irradiation ripple of X/S wave band feed source arrives subreflector, by subreflector, reflexed to primary reflection surface, form the X/S directional diagram through secondary reflection in far field.Use the electric axis 5 of same servo structure drive the same antenna realization guiding of two different-wavebands and follow the tracks of.Same servomechanism drives the same antenna of two different-wavebands.
Patch antenna element is comprised of four blocks of dielectric-slabs, a metal base plate and two connectors, connector is sub-miniature A connector, and inner wire is connected with the metal coating on dielectric-slab, and outer conductor is connected with metal base plate,, by controlling the phase place of two connector positions, just can realize the circular polarization feed.
Claims (5)
1. a two waveband double-circle polarization is total to the bore reflector antenna, comprise, X-band feed (3) and the S-band feed (4) of primary reflection surface (1), subreflector (2), employing double-circle polarization, it is characterized in that, X-band feed and S-band feed share a major and minor reflecting surface of cover, all are positioned on the real focus of subreflector, the S-band feed is looped around around the X-band feed, and the X-band feed overlaps with the electric axis of S-band feed, uses same servomechanism to drive, and combines and carries out rear feed.
2. two waveband double-circle polarization according to claim 1 is total to the bore reflector antenna, it is characterized in that, the X-band feed is fixed on subreflector (1) near on the focus of primary reflection surface.
3. two waveband double-circle polarization according to claim 1 is total to the bore reflector antenna, it is characterized in that, the X-band feed is combined by five square opening footpath diagonal horns.
4. two waveband double-circle polarization according to claim 1 is total to the bore reflector antenna, it is characterized in that, the S-band feed is looped around around the X-band feed, adopts quaternary circular patch antenna form.
5. two waveband double-circle polarization according to claim 1 is total to the bore reflector antenna, it is characterized in that, same servomechanism drives the same antenna of two different-wavebands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201691169U CN203288761U (en) | 2013-04-07 | 2013-04-07 | Double-wave band double-circular polarization co-caliber reflection surface antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201691169U CN203288761U (en) | 2013-04-07 | 2013-04-07 | Double-wave band double-circular polarization co-caliber reflection surface antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203288761U true CN203288761U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201691169U Expired - Fee Related CN203288761U (en) | 2013-04-07 | 2013-04-07 | Double-wave band double-circular polarization co-caliber reflection surface antenna |
Country Status (1)
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| CN (1) | CN203288761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794885A (en) * | 2014-01-17 | 2014-05-14 | 西安空间无线电技术研究所 | Low sidelobe feed-forward reflector antenna |
| CN112599980A (en) * | 2020-11-13 | 2021-04-02 | 中国人民解放军63699部队 | Dual-band multi-mode combined feed source loudspeaker |
-
2013
- 2013-04-07 CN CN2013201691169U patent/CN203288761U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794885A (en) * | 2014-01-17 | 2014-05-14 | 西安空间无线电技术研究所 | Low sidelobe feed-forward reflector antenna |
| CN103794885B (en) * | 2014-01-17 | 2015-11-11 | 西安空间无线电技术研究所 | A kind of Sidelobe feedforward reflector antenna |
| CN112599980A (en) * | 2020-11-13 | 2021-04-02 | 中国人民解放军63699部队 | Dual-band multi-mode combined feed source loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20180407 |