CN202351424U - Meteorological radar polarization switch assembly - Google Patents
Meteorological radar polarization switch assembly Download PDFInfo
- Publication number
- CN202351424U CN202351424U CN2011205147061U CN201120514706U CN202351424U CN 202351424 U CN202351424 U CN 202351424U CN 2011205147061 U CN2011205147061 U CN 2011205147061U CN 201120514706 U CN201120514706 U CN 201120514706U CN 202351424 U CN202351424 U CN 202351424U
- Authority
- CN
- China
- Prior art keywords
- switch
- delivery outlet
- ferrite
- assembly
- input port
- 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 - Lifetime
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
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model discloses a meteorological radar polarization switch assembly. The meteorological radar polarization switch assembly is characterized by being formed by combining differential phase shift type microwave ferrite switches (1,2 and 3) which are arranged in a shape like a Chinese character 'pin', wherein each differential phase shift type microwave ferrite switch is provided with an input port and two output ports; a first switch (1) is in a first grade; the input port of the first switch is used as an input port of the assembly; the input port of a second switch (2) is connected with one output port of the first switch (1); one output port of the second switch (2) is connected with a microwave load, and the other output port of the second switch (2) is used as a first output port of the assembly and is connected with a channel I of a radar; the input port of a third switch (3) is connected with the other output port of the first switch (1); and one output port of the third switch (3) is connected with a microwave load, and the other output port of the third switch (3) is used as a second output port of the assembly and is connected with a channel II of the radar. The assembly is extremely high in universality, and can be cascaded to form any multi-stage structure so as to realize required isolation degrees.
Description
Technical field
The utility model relates to a kind of electronic engineering technology, especially a kind of weather radar High-Power Microwave signal shift switch, specifically a kind of weather radar polarization switch assembly.
Background technology
At present, in the binary channels weather radar, the polarization for the microwave signal that changes radar need switch at two interchannels with a single-pole double-throw (SPDT) microwave switch fast.For realizing the accurate identification of meteorological target phase, require microwave switch can bear high power at the two-wire polarization weather radar, and have the above polarization isolation of 35dB, and existing mature technology generally can only provide the most approximately polarization isolation of 25dB.Greatly improving that existing processing technology requires and the control accuracy of driving circuit and almost under the environment for use condition and very narrow exacting terms such as bandwidth of operation of constant temperature, the isolation of switch can reach 30dB.Obviously, be difficult to satisfy the requirement that the two-wire polarization weather radar is accurately surveyed.
Know according to the applicant, up to the present, both at home and abroad development and production multiple polarimetric radar; Be used to change the polarization switch of High-Power Microwave transmission path; The basic combination of adopting single-stage switch or a plurality of waveguide switches etc., the former polarization isolation is lower, generally can only reach about 25dB; Though latter's isolation can reach more than the 40dB, the passage switch speed can only reach Millisecond, and mode of operations such as prompt change can't realize polarizing.
Summary of the invention
The purpose of the utility model is the low problem of isolation when switching to existing weather radar High-Power Microwave signal, designs a kind of weather radar polarization switch assembly of high-isolation
The technical scheme of the utility model is:
A kind of weather radar polarization switch assembly is characterized in that it is differential phase shift that isosceles triangle the arranges ripple ferrite switch 1,2 that declines by three; 3 combine, and each differential phase shift ripple ferrite switch that declines has an input port, two delivery outlets; First switch 1 is the first order, and its input port is as the input port of assembly, and the input port of second switch 2 is connected with a delivery outlet of first switch 1; A delivery outlet of second switch 2 is connected with microwave pad, and another delivery outlet connects the passage 1 of radar as first delivery outlet of assembly; The input port of the 3rd switch 3 is connected with another delivery outlet of first switch 1; A delivery outlet of the 3rd switch 3 is connected with microwave pad, and another delivery outlet connects the passage 2 of radar as second delivery outlet of assembly.
Described switch 1,2,3 all links to each other with an output terminal of excitation control.
The described differential phase shift ripple ferrite switch that declines mainly is made up of wave-guide cavity wave, ferrite component, adaptation, media support, control coil and control circuit.
Described magnetizing coil passes the ferrite inner aperture; By the external dc pulse magnetizing field is provided, the duty of switch confirms that by the direction that adds magnetizing field ferrite component designs in the locking-type duty; Promptly magnetize pulse+Im through behind the coil; Ferrite component is in+the Br remnant magnetism state, is in the belt state of a direction with maintained switch, when magnetization pulse-Im through behind the coil; Magnetizing field make ferrite component be in-thereby the Br remnant magnetism state makes the enclosed type ferrite switch be in reciprocal belt state, to realize the conversion of open and close state.
The beneficial effect of the utility model:
1. the utility model is formed the two-layer configuration of " article " font through utilizing three differential phase shifts ripple ferrite switch that declines, and realization is equivalent to the polarization isolation of regular tap twice.Need not extra excessive demand be proposed to existing processing technology and control accuracy.
2. the utlity model has good versatility, can be cascaded into multistage structure arbitrarily, the isolation that realization needs.
3. the microwave pad in the utility model is removed, then become hilted broadsword four throw switches; Can be cascaded into multistage structure arbitrarily, the realization hilted broadsword is thrown function more.
4, the utility model utilizes existing technical conditions, has realized the quick switching of High-Power Microwave signal between two POLARIZATION CHANNEL of radar, and obtains the good technical index: insert loss≤0.9dB; Polarization isolation>=40dB; Bear peak power>=300kW, average power>=250W; Polarization conversion time≤2 μ s.
5, the utility model can be realized the multimode system work of weather radar, adopts the design proposal of dicyclo latching phase shifter, can realize simultaneously that radar single-shot list is received, single-emission and double-receiving, can realize again twoly sending out two the receipts, and mode of operation such as the prompt change of polarization.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1.
A kind of weather radar polarization switch assembly, it is differential phase shift that isosceles triangle the arranges ripple ferrite switch 1,2 that declines by three; 3 combine, and each differential phase shift ripple ferrite switch that declines has an input port, two delivery outlets; First switch 1 is the first order, and its input port is as the input port of assembly, and the input port of second switch 2 is connected with a delivery outlet of first switch 1; A delivery outlet of second switch 2 is connected with microwave pad; Another delivery outlet is as first delivery outlet of assembly, and the input port that connects 1, the three switch 3 of passage of radar is connected with another delivery outlet of first switch 1; A delivery outlet of the 3rd switch 3 is connected with microwave pad; Another delivery outlet is as second delivery outlet of assembly, and 2, the second switches 2 of passage and the 3rd switch 3 of connecting radar are the second level of polarization switch assembly.
The described differential phase shift ripple ferrite switch that declines mainly is made up of wave-guide cavity wave, ferrite component, adaptation, media support, control coil and control circuit.Described magnetizing coil passes the ferrite inner aperture; By the external dc pulse magnetizing field is provided, the duty of switch confirms that by the direction that adds magnetizing field ferrite component designs in the locking-type duty; Promptly magnetize pulse+Im through behind the coil; Ferrite component is in+the Br remnant magnetism state, is in the belt state of a direction with maintained switch, when magnetization pulse-Im through behind the coil; Magnetizing field make ferrite component be in-thereby the Br remnant magnetism state makes the enclosed type ferrite switch be in reciprocal belt state, to realize the conversion of open and close state.
The course of work of the utility model is:
As shown in Figure 1, when radar needs passage 1 work, control first switch and be communicated with delivery outlet 1, control second switch and be communicated with delivery outlet 2, control the 3rd switch and be communicated with delivery outlet 1.The passage 1 of the delivery outlet 2 entering radars of the delivery outlet 1 of microwave signal through first switch and second switch.And from a small amount of microwave energy that the delivery outlet 2 of first switch is revealed, through the delivery outlet 1 of the 3rd switch, absorbed by microwave pad, have only atomic little energy to get into the passage 2 of radar from the delivery outlet 2 of the 3rd switch.If the isolation of each switch is 20dB; Be 1% promptly from the microwave energy of revealing from the delivery outlet 2 of first switch; The microwave energy that then gets into the passage 2 of radars from the delivery outlet of the 3rd switch 2 is 1% * 1%=1/10000, and promptly therefore the isolation 40dB of whole assembly realizes high-isolation.In like manner, when radar needs passage 2 work, control first switch and be communicated with delivery outlet 2, control second switch and be communicated with delivery outlet 1, control the 3rd switch and be communicated with delivery outlet 2.The state of each switch is controlled through exciting circuit by radar console.
The utility model does not relate to all identical with the prior art prior art that maybe can adopt of part to be realized.
Claims (4)
1. weather radar polarization switch assembly is characterized in that it is differential phase shift that isosceles triangle the arranges ripple ferrite switch (1,2 that declines by three; 3) combine, each differential phase shift ripple ferrite switch that declines has an input port, two delivery outlets; First switch (1) is the first order; Its input port is as the input port of assembly, and the input port of second switch (2) is connected with a delivery outlet of first switch (1), and a delivery outlet of second switch (2) is connected with microwave pad; Another delivery outlet is as first delivery outlet of assembly; The input port that connects 1, the three switch of passage (3) of radar is connected with another delivery outlet of first switch (1), and a delivery outlet of the 3rd switch (3) is connected with microwave pad; Another delivery outlet connects the passage 2 of radar as second delivery outlet of assembly.
2. weather radar polarization switch assembly according to claim 1, the described switch of its characteristic (1,2,3) all link to each other with an output terminal of excitation control.
3. weather radar polarization switch assembly according to claim 1, the described differential phase shift of its characteristic ripple ferrite switch that declines mainly is made up of wave-guide cavity wave, ferrite component, adaptation, media support, control coil and control circuit.
4. weather radar polarization switch assembly according to claim 3, the described magnetizing coil of its characteristic passes the ferrite inner aperture, by the external dc pulse magnetizing field is provided; The duty of switch is confirmed by the direction that adds magnetizing field; The ferrite component design is promptly magnetized pulse+Im through behind the coil in the locking-type duty, and ferrite component is in+the Br remnant magnetism state; Be in the belt state of a direction with maintained switch; When magnetization pulse-Im through behind the coil, thereby magnetizing field make ferrite component be in-the Br remnant magnetism state makes the enclosed type ferrite switch be in reciprocal belt state, to realize the conversion of open and close state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205147061U CN202351424U (en) | 2011-12-12 | 2011-12-12 | Meteorological radar polarization switch assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205147061U CN202351424U (en) | 2011-12-12 | 2011-12-12 | Meteorological radar polarization switch assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351424U true CN202351424U (en) | 2012-07-25 |
Family
ID=46540420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205147061U Expired - Lifetime CN202351424U (en) | 2011-12-12 | 2011-12-12 | Meteorological radar polarization switch assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351424U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931451A (en) * | 2012-10-22 | 2013-02-13 | 中国航天科工集团第二研究院二十三所 | Satellite-borne ferrite microwave front-end backup circuit |
| CN106058480A (en) * | 2016-06-01 | 2016-10-26 | 西安电子工程研究所 | Arbitrary polarized wave generation and calibration methods |
| CN109599643A (en) * | 2018-11-29 | 2019-04-09 | 北京无线电测量研究所 | A kind of X-band polarization microwave front-end component |
| CN110488286A (en) * | 2019-07-29 | 2019-11-22 | 中国科学院电子学研究所 | A kind of biradical Spaceborne SAR System multifunction microwave unitized designing method and device |
| CN112290176A (en) * | 2020-09-08 | 2021-01-29 | 北京无线电测量研究所 | Polarization-changing device with double-layer ferrite switch |
-
2011
- 2011-12-12 CN CN2011205147061U patent/CN202351424U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931451A (en) * | 2012-10-22 | 2013-02-13 | 中国航天科工集团第二研究院二十三所 | Satellite-borne ferrite microwave front-end backup circuit |
| CN102931451B (en) * | 2012-10-22 | 2014-09-17 | 中国航天科工集团第二研究院二十三所 | Satellite-borne ferrite microwave front-end backup circuit |
| CN106058480A (en) * | 2016-06-01 | 2016-10-26 | 西安电子工程研究所 | Arbitrary polarized wave generation and calibration methods |
| CN109599643A (en) * | 2018-11-29 | 2019-04-09 | 北京无线电测量研究所 | A kind of X-band polarization microwave front-end component |
| CN110488286A (en) * | 2019-07-29 | 2019-11-22 | 中国科学院电子学研究所 | A kind of biradical Spaceborne SAR System multifunction microwave unitized designing method and device |
| CN110488286B (en) * | 2019-07-29 | 2021-09-14 | 中国科学院电子学研究所 | Multifunctional microwave combination design method and device for double-base satellite-borne SAR system |
| CN112290176A (en) * | 2020-09-08 | 2021-01-29 | 北京无线电测量研究所 | Polarization-changing device with double-layer ferrite switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202351424U (en) | Meteorological radar polarization switch assembly | |
| CN104215936B (en) | A kind of eight unit T/R basic modules of S frequency range multi-beam transmission duplex | |
| CN203085728U (en) | Two-route power distributer | |
| CN103280621B (en) | Five decile power splitters | |
| CN104393374A (en) | Reciprocal type microwave ferrite switch | |
| WO2021213385A1 (en) | Ferrite switch, microwave antenna, and electronic device | |
| CN202444044U (en) | Waveguide circulator | |
| US20150318600A1 (en) | Radio Frequency Power Combiner | |
| CN102637935B (en) | Microwave attenuator | |
| CN104104407B (en) | Multifunctional microwave transmit-receive front end | |
| CN103348529B (en) | For the duplexer of homodyne FMCW radar device | |
| CN204439828U (en) | A kind of two-way multi-operation mode channel selecting and signal sampling circuit | |
| CN112216937B (en) | Faraday rotary switch | |
| CN210225409U (en) | TR subassembly of X wave band | |
| CN105097367A (en) | T-type coaxial electromechanical switch | |
| CN203688795U (en) | Large power compound switch | |
| CN205122742U (en) | Power distribution unit | |
| CN204131487U (en) | A kind of polarization self-adaptive switch assembly | |
| CN210092312U (en) | Multi-path cross coupler | |
| US4527134A (en) | Reciprocal RF switch | |
| CN109560787A (en) | One bit realizes the reflex type digital phase shifter of two kinds of phase shifts | |
| CN204046552U (en) | A kind of 2 × 16 road high power switch assemblies | |
| CN203708239U (en) | X wave band multifunctional chip circuit | |
| CN204271234U (en) | A kind of millimeter wave power synthesizer | |
| CN201215585Y (en) | Ultra-minisize separator used in T/R component of phased array radar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |