CN201285802Y - X frequency band dual polarization radar antenna - Google Patents
X frequency band dual polarization radar antenna Download PDFInfo
- Publication number
- CN201285802Y CN201285802Y CNU2008200295506U CN200820029550U CN201285802Y CN 201285802 Y CN201285802 Y CN 201285802Y CN U2008200295506 U CNU2008200295506 U CN U2008200295506U CN 200820029550 U CN200820029550 U CN 200820029550U CN 201285802 Y CN201285802 Y CN 201285802Y
- Authority
- CN
- China
- Prior art keywords
- antenna
- reflector
- band dual
- antenna reflector
- dual polarization
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
An X wave band dual-polarization radar antenna comprises an antenna reflector, a feedhorn arranged at the top of the antenna reflector and a quadrature device, wherein the antenna reflector has a non-split revolution paraboloid structure ( a center part is cut off after the process is finished, and the riveting conforms to the cast aluminium center body of a standard paraboloid curve); the feedhorn is a POTER feedhorn; and the quadrature device is in a round waveguide lateral arm coupled mode. The utility model solves the problems that the prior equipment is expensive and the antenna has bad technical parameter, and the utility model has the advantages of simple structure and scientific and reasonable match.
Description
Technical field
The utility model relates to a kind of radar antenna equipment, is specifically related to a kind of X-band dual polarization radar antenna of surveying weather conditions that is mainly used in.
Background technology
Along with the continuous development of science and technology, the technical merit of surveying weather conditions is constantly improving.X-band dual polarization radar antenna system is the key equipment that is mainly used in the detection radar of surveying weather conditions.At present, external dual-polarization weather radar Detection Techniques level is higher, but the complex structural designs of antenna, difficulty of processing is big, and producing needs to use special equipment, and the production cost height costs an arm and a leg.China is relatively backward to the detection radar equipment of weather, many units research and development weather detection radar is arranged, but owing on some key technologies, be difficult to break through, the distorted signals of equipment is big, precision of detection is relatively poor, and one of key technology wherein is that the technical parameter of radar antenna system is difficult to realize.
Summary of the invention
The purpose of this utility model is to provide a kind of X-band dual polarization radar antenna, and it has solved the difficult problem of equipment price costliness, antenna technology parameter difference in the background technology.
Design of the present utility model is as follows:
A kind of X-band dual polarization radar antenna, comprise antenna reflector 1, be arranged at the Feed Horn 2 on antenna reflector 1 top, and quadrature device 3, its special character is: described antenna reflector 1 is that distinguish paraboloid of revolution structure (is not cut away the centre after machining, the aluminum casting centerbody of riveted joint conformance with standard parabolic curve, described Feed Horn 2 is POTER loudspeaker, the quadrature device that described quadrature device 3 is circular waveguide side arm coupling and form.
Above-described antenna reflector 1 is good to adopt feedforward standard paraboloidal reflector specifically, and the standard parabolic curve of this antenna reflector 1 is:
The illumination angle of the above Feed Horn 2 is advisable with 2 θ m=142 °.
Above-described Feed Horn 2 is to adopt the four bar supporting forms of 90 ° uniform (wherein two support bars are taken into account two road waveguide feeders) support at interval on antenna reflector 1.
The utlity model has following advantage:
Simple in structure and mate scientific and reasonable.
Adopt the POTER loudspeaker, this loudspeaker can reach change characteristic and the low-down cross-polarization performance such as good wave beam that corrugated horn has in narrower frequency range, antenna pattern first secondary lobe is less than-27dB, 3dB beamwidth≤1 °, cross polarization level is less than-36.5dB, and simple in structure, be easy to processing.
The circular waveguide side arm coupling and the quadrature device that adopt can make the standing wave of feed quadrature device two ports in bandwidth of operation all be better than 45dB less than the isolation of 1.04, two ports.
Antenna reflective face is splitted structure not, has guaranteed surface accuracy, and make H, E face at 45 ° and 135 ° of electrical properties: electric directivity is poor :≤0.1 °, beamwidth is poor :≤0.1 °, antenna gain is poor :≤0.1dB, it is little to transmit and receive the distortion that signal causes.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a left view of the present utility model.
Accompanying drawing drawing explanation: 1-antenna reflector, 2-Feed Horn, 3-quadrature device.
Embodiment
Referring to Fig. 1, antenna reflector 1 of the present utility model adopts feedforward standard paraboloidal reflector, is the paraboloid of revolution, can realize lower antenna pattern secondary lobe characteristic.The standard parabolic curve of antenna reflector 1 is:
The origin of coordinates is the antenna surface summit, and wherein X is a horizontal direction, and Y is a vertical direction, and F is a focal length.
The paraboloid of revolution is the structure of distinguish not, the electric parameter that the utility model is implemented: X-band operating frequency 9370 ± 25MHz, antenna gain 〉=the 42.5dB that contains feeder loss, the level of antenna, vertical plane claims the H of antenna again, the E face, 3dB beamwidth≤1 °, lobe width is poor≤and 0.1 °, with the main shaft be center ± 2 ° maximum sidelobe level with interior any plane near-end co-polar pattern≤-27dB, can be-40dB in the sidelobe level that with the main shaft is any plane far-end co-polar pattern beyond center ± 5 °, axial cross polarization level≤-35dB, 1dB point cross polarization level≤-30dB, merits such as power splitter are divided error :≤0.25dB, the caused phase shifting angle of horizontal/vertical polarization branch road wave path-difference≤0.25 °.
Feed Horn 2 of the present utility model is good to adopt the POTER loudspeaker specifically, is 2 θ m=142 ° to the illumination angle of antenna reflector 1.Feed Horn 2 is to adopt four bar supporting forms on antenna reflector 1, at interval 90 ° uniform (wherein two support bars are taken into account the support of two road waveguide feeders).Launch a route polarized signal, receive vertical and level two route polarized signals.
Claims (4)
1. X-band dual polarization radar antenna, comprise antenna reflector (1), be arranged at the Feed Horn (2) on antenna reflector (1) summit, and quadrature device (3), it is characterized in that: described antenna reflector (1) is a distinguish paraboloid of revolution structure not, described Feed Horn (2) is the POTER loudspeaker, and described quadrature device (3) is the quadrature device of circular waveguide side arm coupling and form.
2. X-band dual polarization radar antenna according to claim 1 is characterized in that: described antenna reflector (1) is a feedforward standard paraboloidal reflector, and the standard parabolic curve of this antenna reflector (1) is:
3. X-band dual polarization radar antenna according to claim 1 and 2 is characterized in that: the illumination angle of described Feed Horn (2) is 2 θ
m
4. X-band dual polarization radar antenna according to claim 3 is characterized in that: described Feed Horn (2) is with the 90 ° of four uniform bar supporting forms in interval on antenna reflector (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200295506U CN201285802Y (en) | 2008-07-03 | 2008-07-03 | X frequency band dual polarization radar antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200295506U CN201285802Y (en) | 2008-07-03 | 2008-07-03 | X frequency band dual polarization radar antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201285802Y true CN201285802Y (en) | 2009-08-05 |
Family
ID=40950783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200295506U Expired - Fee Related CN201285802Y (en) | 2008-07-03 | 2008-07-03 | X frequency band dual polarization radar antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201285802Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981163A (en) * | 2012-12-20 | 2013-03-20 | 西安电子工程研究所 | Dual-polarization weather radar structure integrating antenna and transmit-receive system |
| CN109270536A (en) * | 2018-10-31 | 2019-01-25 | 安徽四创电子股份有限公司 | A kind of signal processor of Doppler radar |
| CN109478725A (en) * | 2016-09-23 | 2019-03-15 | 康普技术有限责任公司 | Double frequency-band paraboloid microwave antenna system |
| US11424538B2 (en) | 2018-10-11 | 2022-08-23 | Commscope Technologies Llc | Feed systems for multi-band parabolic reflector microwave antenna systems |
-
2008
- 2008-07-03 CN CNU2008200295506U patent/CN201285802Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981163A (en) * | 2012-12-20 | 2013-03-20 | 西安电子工程研究所 | Dual-polarization weather radar structure integrating antenna and transmit-receive system |
| CN109478725A (en) * | 2016-09-23 | 2019-03-15 | 康普技术有限责任公司 | Double frequency-band paraboloid microwave antenna system |
| US11489259B2 (en) | 2016-09-23 | 2022-11-01 | Commscope Technologies Llc | Dual-band parabolic reflector microwave antenna systems |
| US11424538B2 (en) | 2018-10-11 | 2022-08-23 | Commscope Technologies Llc | Feed systems for multi-band parabolic reflector microwave antenna systems |
| US11742577B2 (en) | 2018-10-11 | 2023-08-29 | Commscope Technologies Llc | Feed systems for multi-band parabolic reflector microwave antenna systems |
| CN109270536A (en) * | 2018-10-31 | 2019-01-25 | 安徽四创电子股份有限公司 | A kind of signal processor of Doppler radar |
| CN109270536B (en) * | 2018-10-31 | 2020-09-01 | 安徽四创电子股份有限公司 | Signal processor of Doppler weather radar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2379151C (en) | Ka/ku dual band feedhorn and orthomode transducer (omt) | |
| CN101645538B (en) | Low-sidelobe horn antennas of micro-strip excitation | |
| CN111403902B (en) | Beam-forming dual circularly polarized antenna | |
| CN110289483B (en) | Double-frequency double-circular polarization navigation measurement and control antenna feed source | |
| CN205595463U (en) | Waveguide gap coupling circular polarized antenna | |
| CN107046177B (en) | Feed source of back-feed type dual-polarized parabolic antenna | |
| CN201758184U (en) | Satellite communication antenna for Ka waveband | |
| CN113644432B (en) | Dual circularly polarized phased array antenna array | |
| CN113725615B (en) | Broadband dual-polarized horn antenna | |
| CN105958205A (en) | Multiband dual-polarized high-power feed source | |
| CN201285802Y (en) | X frequency band dual polarization radar antenna | |
| US7095380B2 (en) | Antenna device | |
| CN205723956U (en) | A kind of high-power feed of multiband dual polarization | |
| CN106654540B (en) | Antenna element assembly and spotlight antenna | |
| CN112086755A (en) | Horn antenna array element of double circular polarization, wide wave beam and high polarization purity medium | |
| CN208385638U (en) | The multifrequency antenna for base station of high and low frequency combination | |
| CN101626113A (en) | Double-circle polarization and difference beam broadband corrugation horn feed antenna | |
| CN109193154A (en) | A kind of millimeter wave circular polarisation multi-beam plate cylindrical dielectric lens antenna | |
| CN111710969A (en) | Waveguide array satellite communication antenna with low profile and high broadband | |
| CN105680158A (en) | Feed network-based low-frequency compact range feed source | |
| CN205646177U (en) | Exceedingly high line during low section flat board moves | |
| CN201655972U (en) | Panel antenna for horizontal polarization base station | |
| CN204375958U (en) | A kind of antenna and airborne communication control | |
| CN103326135A (en) | Wide wave beam and circular waveguide double model circularly polarized antenna | |
| JP3662446B2 (en) | Dual frequency feed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shaanxi Jiepu Control Technology Co., Ltd. Assignor: Feng Chao Contract record no.: 2011610000151 Denomination of utility model: X frequency band dual polarization radar antenna Granted publication date: 20090805 License type: Exclusive License Record date: 20110811 |
|
| 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: 20090805 Termination date: 20170703 |