CN109103596A - Dual polarization high-isolation antenna and satellite-borne synthetic aperture radar source scaler - Google Patents
Dual polarization high-isolation antenna and satellite-borne synthetic aperture radar source scaler Download PDFInfo
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- CN109103596A CN109103596A CN201810946733.2A CN201810946733A CN109103596A CN 109103596 A CN109103596 A CN 109103596A CN 201810946733 A CN201810946733 A CN 201810946733A CN 109103596 A CN109103596 A CN 109103596A
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- antenna
- dual polarization
- isolation
- signal
- polarization high
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A kind of dual polarization high-isolation antenna, which is characterized in that dual polarization high-isolation antenna includes: conical horn, for as signal transmitting terminal or receiving end；Orthomode coupler is connect with conical horn, and for realizing waveguide transitions, which can either receive horizontal polarization signals can receive vertical polarization signal again.Another aspect of the present invention provides a kind of source scaler for satellite-borne synthetic aperture radar calibration comprising above-mentioned dual polarization high-isolation antenna.Scheme provided by the invention not only can flexibly provide various calibration collision matrixes required for source scaler, but also reduce the complexity of system, substantially increase ease of use.
Description
Technical field
The present invention relates to the radar exploration technique fields, and in particular, to a kind of dual polarization high-isolation antenna and including
The source scaler for satellite-borne synthetic aperture radar calibration of the dual polarization high-isolation antenna.
Background technique
Satellite-borne synthetic aperture radar (SAR) source scaler is the key equipment of borne polarization SAR In-flight calibration, is satellite
The important component of ground system can be used for satellite-borne SAR polarimetric calibration, antenna pattern measurement, scaling constant measurement, figure
As quality evaluation etc..Carrying out polarimetric calibration to satellite-borne SAR based on source scaler is to obtain the in-orbit distortion matrix of satellite load to join
Several major techniques is relied on, and is the basic link for realizing Spaceborne SAR System high accuracy data processing and application, is that raising is spaceborne
The key of SAR complete polarization application level.Currently, the complete polarization Spaceborne SAR System emitted both at home and abroad nearly all has developed accordingly
Source scaler carries out In-flight calibration.Antenna is the main component of source scaler, be mainly used for satellite-borne SAR signal reception and
Transmitting, the structure type and implementation of antenna are directly related to the overall structure and ease of use of source scaler system.
Existing satellite-borne SAR source scaler some is horizontal pole respectively using the form of four single-polarized antennas at present
Change receiving antenna, vertical polarization receiving antenna, horizontal polarization transmitting antenna and vertical polarization and connect transmitting antenna, is used for horizontal polarization
The reception and transmitting of signal and vertical polarization signal；Some realizes that horizontal polarization is believed by the way of 45 ° of single-polarized antenna rotations
Number and vertical polarization signal reception and transmitting.Although polarization source scaler may be implemented in four antenna forms that the former uses
Institute is functional, but since its antenna amount is more, causes source scaler system very heavy, greatly reduces making for system
Use convenience.The latter realizes the collision matrix of polarization source scaler by way of 45 ° of rotations, causes collision matrix single,
And polarized state is very sensitive to rotation angle, it is difficult to flexibly provide the various collision matrixes that source scaler needs.
Summary of the invention
On the one hand the problem of bringing in order to avoid the form of above two antenna, the embodiment of the present invention propose a kind of double
Polarize high-isolation antenna, which is characterized in that the dual polarization high-isolation antenna includes:
Conical horn, for as signal transmitting terminal or receiving end；
Orthomode coupler is connect with the conical horn, for realizing waveguide transitions,
The dual polarization high-isolation antenna can either receive horizontal polarization signals can receive vertical polarization signal again.
In some embodiments, the inner wall of the conical horn includes ripple struction.
In some embodiments, when work, the conical horn is motivated using hybrid guided mode.
In some embodiments, the orthomode coupler is fed using square wave guide.
In some embodiments, the square wave guide includes multistage hierarchic structure, to realize the square wave guiding rectangular waveguide
Conversion.
Another aspect of the present invention proposes a kind of source scaler for satellite-borne synthetic aperture radar calibration, comprising:
Transmitting antenna, for emitting rate-aided signal；
Receiving antenna, for receiving the signal of synthetic aperture radar sending；With
Radio-frequency module is connect with the receiving antenna and the transmitting antenna respectively, for receiving to the receiving antenna
To signal handled, and will treated that signal is emitted by the transmitting antenna,
It is characterized in that, the receiving antenna and the transmitting antenna are dual polarization high-isolation as described above day
Line.
Based on the above-mentioned technical proposal it is found that the present invention at least achieve it is following the utility model has the advantages that
Satellite-borne SAR source scaler provided by the invention and dual polarization high-isolation antenna, can effectively avoid background technique
In problem brought by the source scaler of two kinds of forms mentioned, both can flexibly provide various required for source scaler
Collision matrix is calibrated, and reduces the complexity of system, substantially increases ease of use.
Detailed description of the invention
Fig. 1 is the schematic diagram of the dual polarization high-isolation antenna in the embodiment of the present invention；
Fig. 2 is the schematic diagram of the satellite-borne synthetic aperture radar source scaler in the embodiment of the present invention；
Fig. 3 is the schematic diagram of the conical horn of the dual polarization high-isolation antenna in Fig. 1；
Fig. 4 is the schematic diagram of the orthomode coupler of the dual polarization high-isolation antenna in Fig. 1；
Fig. 5 a and Fig. 5 b are dual polarization high-isolation antenna in Fig. 1 respectively under horizontal polarization and vertical polarization state
Isolation measurement result figure.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Clearly and completely describe.Obviously, described embodiment is a part of the embodiments of the present invention, instead of all the embodiments.
Based on described the embodiment of the present invention, those of ordinary skill in the art are obtained under the premise of being not necessarily to creative work
Every other embodiment, shall fall within the protection scope of the present invention.
Unless otherwise defined, the technical term or scientific term that the present invention uses should be tool in fields of the present invention
The ordinary meaning for thering is the personage of general technical ability to be understood.
Fig. 1 is the schematic diagram of the dual polarization high-isolation antenna in the embodiment of the present invention comprising conical horn 1 and just
Hand over mode coupler 2.Conical horn 1 is used for transmitting terminal or receiving end as signal.One end of orthomode coupler 2 and circular cone loudspeaker
1 small end connection；When dual polarization high-isolation antenna applications are when source scaler shown in Fig. 2, orthomode coupler 2
The other end connect with radio-frequency module 3, orthomode coupler 2 is for realizing waveguide transitions.
The dual polarization high-isolation antenna that the embodiment of the present invention provides overcomes suitable for satellite-borne SAR source scaler
Using the disadvantage that existing antenna implementation bring satellite-borne SAR source scaler is inconvenient to use or function is incomplete.
Preferably, with further reference to Fig. 3, the inner wall of conical horn 1 includes ripple struction；When dual polarization high-isolation antenna
When work, conical horn 1 is motivated using hybrid guided mode.The embodiment of the present invention carries out conical horn 1 using hybrid guided mode
Excitation, can get excellent low-cross polarization performance, provides polarization isolation；Conical horn 1 is protected using the method for corrugated design
The good performance of hybrid guided mode in big bandwidth has been demonstrate,proved, ensure that higher polarization isolation in antenna large bandwidth.
Preferably, with further reference to Fig. 4, orthomode coupler 2 is fed using square wave guide 21, and the square wave guide 21 includes
Multistage hierarchic structure 22, to realize the conversion of square wave guiding rectangular waveguide 24；Orthomode coupler 2 may also include connectivity port
23.Orthomode coupler 2 in the embodiment of the present invention uses square wave guide 21, and realizes square wave using multistage hierarchic structure 22
21 conversion to rectangular waveguide 24 is led, is not likely to produce cross-product, it can be achieved that higher polarization isolation, and effectively improve end
The voltage standing wave ratio and interport isolation of mouth.
It referring further to Figure 2, is the schematic diagram of the source scaler for satellite-borne SAR in the embodiment of the present invention, such as
Shown in Fig. 2, which includes transmitting antenna 4, receiving antenna 5 and radio-frequency module 3, and transmitting antenna 4 is for emitting calibration
Signal；Receiving antenna 5 is used to receive the signal of satellite-borne SAR sending；Radio-frequency module 3 connects with transmitting antenna 4 and receiving antenna 5 respectively
It connects, the signal received by receiving antenna 5 is handled, and treated signal is emitted by transmitting antenna 4.Emit day
Line 4 and receiving antenna 5 are dual polarization high-isolation antenna as described above, which is configured as both
Horizontal polarization signals can be received can receive vertical polarization signal again.In Fig. 2, H indicates that horizontal polarization signals, V indicate vertical
Polarized signal.
The embodiment of the present invention realizes the active calibration of satellite-borne SAR by using the form of dual polarization high-isolation antenna
Device can flexibly provide various calibration collision matrixes required for polarization source scaler；And provide a kind of light, function
The complete source scaler for satellite-borne SAR of energy.
With further reference to Fig. 5 a and Fig. 5 b, the embodiment provides a kind of C-band dual polarization high-isolation antenna,
The actual test of the dual polarization high-isolation antenna in the embodiment of the present invention is given in figure as a result, homopolarity is set forth in figure
Change and cross-polarized antenna radiation pattern, from directional diagram it can be seen that dual polarized antenna of the present invention has very high polarization isolation
(close to 50dB) fully meets the requirement of satellite-borne SAR polarization source scaler.
In conclusion the source scaler and dual polarization high-isolation antenna of the satellite-borne SAR that the embodiment of the present invention provides,
Four antenna form bring systems bulkies, disadvantage inconvenient to use are overcome, the overall weight and knot of system are greatly reduced
Structure complexity improves system ease of use；And it overcomes 45 ° of rotated versions bring polarization source scalers of antenna to dissipate
The single disadvantage of matrix is penetrated, every equipment can flexibly provide the satellite-borne SAR various collision matrixes that calibration needs.The present invention mentions
The scheme of confession uses multinomial key technology, substantially increases the polarizability of antenna, provides for satellite-borne SAR high-precision polarimetric calibration
Basis.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in protection of the invention
Within the scope of.
Claims (6)
1. a kind of dual polarization high-isolation antenna, which is characterized in that the dual polarization high-isolation antenna includes:
Conical horn, for as signal transmitting terminal or receiving end；
Orthomode coupler is connect with the conical horn, for realizing waveguide transitions,
Wherein, the dual polarization high-isolation antenna can either receive horizontal polarization signals can receive vertical polarization signal again.
2. according to dual polarization high-isolation antenna described in claim 1, which is characterized in that the inner wall of the conical horn includes wave
Line structure.
3. according to dual polarization high-isolation antenna described in claim 1, which is characterized in that when work, using hybrid guided mode to described
Conical horn is motivated.
4. dual polarization high-isolation antenna according to claim 1, which is characterized in that the orthomode coupler use side
Waveguide is fed.
5. dual polarization high-isolation antenna according to claim 4, which is characterized in that the square wave guide includes multistage ladder
Structure, to realize the conversion of the square wave guiding rectangular waveguide.
6. a kind of source scaler for satellite-borne synthetic aperture radar calibration, comprising:
Transmitting antenna, for emitting rate-aided signal；
Receiving antenna, for receiving the signal of synthetic aperture radar sending；With
Radio-frequency module is connect with the receiving antenna and the transmitting antenna respectively, for what is received to the receiving antenna
Signal is handled, and signal is emitted by the transmitting antenna by treated,
It is characterized in that, the receiving antenna and the transmitting antenna are according to any one of claims 1-5 double
Polarize high-isolation antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946733.2A CN109103596B (en) | 2018-08-17 | 2018-08-17 | Dual-polarized high-isolation antenna and satellite-borne synthetic aperture radar active scaler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946733.2A CN109103596B (en) | 2018-08-17 | 2018-08-17 | Dual-polarized high-isolation antenna and satellite-borne synthetic aperture radar active scaler |
Publications (2)
| Publication Number | Publication Date |
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| CN109103596A true CN109103596A (en) | 2018-12-28 |
| CN109103596B CN109103596B (en) | 2020-10-30 |
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| CN201810946733.2A Active CN109103596B (en) | 2018-08-17 | 2018-08-17 | Dual-polarized high-isolation antenna and satellite-borne synthetic aperture radar active scaler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596271A (en) * | 2020-06-01 | 2020-08-28 | 中国科学院空天信息创新研究院 | Synthetic aperture radar polarization calibration method based on active calibrator reference matrix |
| CN112421230A (en) * | 2020-09-17 | 2021-02-26 | 航天科工空间工程发展有限公司 | V-band omnidirectional receiving and transmitting measurement and control antenna, transmitting and receiving equipment and satellite |
| CN115396048A (en) * | 2022-07-11 | 2022-11-25 | 中国电子科技集团公司第二十九研究所 | Passive broadband quadrature signal calibration circuit and system |
| CN117724063A (en) * | 2024-01-25 | 2024-03-19 | 南京新频点电子科技有限公司 | Mobile unmanned aerial vehicle SAR radar active scaler device and working mode thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944136Y (en) * | 2006-06-02 | 2007-09-05 | 中国科学院电子学研究所 | Active external scaler of broadband synthetic aperture radar |
| CN104979638A (en) * | 2015-06-26 | 2015-10-14 | 安徽四创电子股份有限公司 | Dual-band and dual-polarization millimeter wave feed source |
| CN106876853A (en) * | 2017-03-31 | 2017-06-20 | 安徽四创电子股份有限公司 | A kind of Ku band broadbands orthomode coupler |
| US20170207541A1 (en) * | 2015-09-11 | 2017-07-20 | Antenna Research Associates | Dual polarized dual band full duplex capable horn feed antenna |
-
2018
- 2018-08-17 CN CN201810946733.2A patent/CN109103596B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944136Y (en) * | 2006-06-02 | 2007-09-05 | 中国科学院电子学研究所 | Active external scaler of broadband synthetic aperture radar |
| CN104979638A (en) * | 2015-06-26 | 2015-10-14 | 安徽四创电子股份有限公司 | Dual-band and dual-polarization millimeter wave feed source |
| US20170207541A1 (en) * | 2015-09-11 | 2017-07-20 | Antenna Research Associates | Dual polarized dual band full duplex capable horn feed antenna |
| CN106876853A (en) * | 2017-03-31 | 2017-06-20 | 安徽四创电子股份有限公司 | A kind of Ku band broadbands orthomode coupler |
Non-Patent Citations (1)
| Title |
|---|
| 徐辉等: "毫米波双路集成接收前端设计与仿真", 《空间电子技术》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596271A (en) * | 2020-06-01 | 2020-08-28 | 中国科学院空天信息创新研究院 | Synthetic aperture radar polarization calibration method based on active calibrator reference matrix |
| CN112421230A (en) * | 2020-09-17 | 2021-02-26 | 航天科工空间工程发展有限公司 | V-band omnidirectional receiving and transmitting measurement and control antenna, transmitting and receiving equipment and satellite |
| CN112421230B (en) * | 2020-09-17 | 2022-09-23 | 航天科工空间工程发展有限公司 | V-band omnidirectional transmitting-receiving measurement and control antenna, transmitting-receiving equipment and satellite |
| CN115396048A (en) * | 2022-07-11 | 2022-11-25 | 中国电子科技集团公司第二十九研究所 | Passive broadband quadrature signal calibration circuit and system |
| CN115396048B (en) * | 2022-07-11 | 2024-03-26 | 中国电子科技集团公司第二十九研究所 | Passive broadband orthogonal signal calibration circuit and system |
| CN117724063A (en) * | 2024-01-25 | 2024-03-19 | 南京新频点电子科技有限公司 | Mobile unmanned aerial vehicle SAR radar active scaler device and working mode thereof |
| CN117724063B (en) * | 2024-01-25 | 2024-05-14 | 南京新频点电子科技有限公司 | Mobile unmanned aerial vehicle SAR radar active scaler device |
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| Publication number | Publication date |
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| CN109103596B (en) | 2020-10-30 |
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