CN210465674U - Ku frequency band search alarm radar radio frequency front end - Google Patents
Ku frequency band search alarm radar radio frequency front end Download PDFInfo
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- CN210465674U CN210465674U CN201921060980.9U CN201921060980U CN210465674U CN 210465674 U CN210465674 U CN 210465674U CN 201921060980 U CN201921060980 U CN 201921060980U CN 210465674 U CN210465674 U CN 210465674U
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Abstract
The utility model discloses a Ku frequency band search alarm radar radio frequency front end, which comprises a transmitting module, a wave frequency control motherboard, a receiving frequency conversion module, a transmitting antenna and a receiving antenna, and also comprises a frequency synthesis module and a power division module; the receiving frequency conversion module comprises 16 receiving frequency conversion channels, the quantity of the receiving frequency conversion module is four, the receiving antenna consists of 32 waveguide slot antennas, each antenna is provided with two feed source ports, 64 feed source ports are totally and respectively corresponding to 64 channels of the receiving frequency conversion module, the multichannel receiving frequency conversion module gives a radar signal processor signals received by each antenna unit, the processor performs digital beam forming after sampling simultaneously, the beam scanning coverage time of a detection airspace is greatly reduced, phase control of each channel of the transmitting module is realized, transmitting antenna beams required by the radar are formed, the rapid airspace coverage of the radar is realized, and meanwhile, the transmitting power is synthesized in a space mode, and the synthetic efficiency is higher than that of a traditional circuit.
Description
Technical Field
The utility model relates to a radar radio frequency front end technical field is reported an emergency and asked for help or increased vigilance in search particularly, relates to a radar radio frequency front end is reported an emergency and asked for help or increased vigilance in Ku frequency channel search.
Background
At the radio frequency front end of the existing Ku frequency band search alarm radar, the efficiency of processing signals by a radar signal processor is low, the time required for scanning and covering beams in a detection airspace is long, and meanwhile, the beam synthesis efficiency of a traditional circuit synthesis transmitting antenna is low.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides a radar radio frequency front end is reported an emergency and asked for help or increased vigilance in Ku frequency channel search to solve above-mentioned inefficiency, the scanning of handling signal and cover the problem that the required time is long.
In order to solve the technical problem, the utility model discloses a technical scheme is: a Ku frequency band search alarm radar radio frequency front end comprises a transmitting module, a wave frequency control mother board, a receiving frequency conversion module, a transmitting antenna and a receiving antenna, and is characterized by also comprising a frequency synthesis module and a power division module; the signal output part of the receiving antenna is connected with the first signal input part of the receiving frequency conversion module, the signal output part of the frequency synthesizing module is connected with the signal input part of the power dividing module, the signal output part of the power dividing module is connected with the second signal input part of the receiving frequency conversion module, the signal output part of the receiving frequency conversion module is connected with the signal input part of the radar signal processor, the signal output part of the radar signal processor is connected with the signal input part of the wave frequency control mother board, the signal output part of the wave frequency control mother board is connected with the signal input part of the transmitting module, and the signal output part of the transmitting module is connected with the signal input part of the transmitting antenna.
The radar echo signals received by a receiving antenna are amplified through a receiving frequency conversion module, amplitude and phase control is carried out, the signals are converted into intermediate frequency signals through down conversion, the signals are output to a radar signal processor, while the process is carried out, a power division module provides clock signals required by the radar signal processor and local oscillator signals required by the receiving frequency conversion module with a frequency synthesis module, the clock signals and the local oscillator signals are distributed to the receiving frequency conversion module and transmitted to the radar signal processor, beam pointing and instruction receiving sent by the radar signal processor are completed through a wave control motherboard, resolving and distributing of amplitude and phase control signals of an antenna unit are carried out, antenna beam space synthesis is achieved, conversion between an antenna calibration mode and a working mode is achieved, functions of temperature acquisition, state feedback and the like of the receiving frequency conversion module and a transmitting module are achieved, and finally signals amplified by the transmitting module are radiated by the transmitting antenna.
Preferably, the receiving frequency conversion module comprises 16 receiving frequency conversion channels, the number of the receiving frequency conversion modules is 4, the receiving antenna comprises 32 waveguide slot antennas, each waveguide slot of the receiving antenna has 2 feed ports, and 64 feed ports correspond to 64 receiving frequency conversion channels of the receiving frequency conversion module respectively.
The multi-channel receiving frequency conversion module can provide signals received by each antenna unit to the processor, the processor performs digital beam forming after sampling simultaneously, a plurality of beams are formed in the area of the coverage area of the antenna units simultaneously, the beam scanning coverage time of a detection airspace is greatly reduced, and a plurality of targets can be tracked simultaneously.
Preferably, the number of the transmitting modules is 2, the transmitting module includes 8 transmitting channels, the output power of each transmitting channel is greater than 50W, the transmitting antenna includes 4 waveguide slot antennas, each waveguide slot antenna of the transmitting antenna has 4 feed ports, and total 16 feed ports correspond to 16 transmitting channels of the transmitting module respectively.
Through the phase control of each channel of the transmitting module, a transmitting antenna beam required by the radar is formed, the beam has the phase scanning capability, the rapid airspace coverage of the radar is realized, and meanwhile, the transmitting power has higher synthesis efficiency than the traditional circuit synthesis in a space synthesis mode.
The utility model has the advantages that:
(1) the high and low local oscillation signals output by the frequency synthesis module are divided into four paths respectively by the power division module and are sent to four receiving frequency conversion modules, radar echo signals received by an antenna are amplified by the receiving frequency conversion modules, amplitude and phase control is output to a processor, the signal processing efficiency of the radar signal processor is improved, a wave control motherboard receives beam pointing instructions sent by the radar signal processor, and antenna beam space synthesis and conversion between an antenna calibration mode and a working mode are realized by resolving and distributing amplitude and phase control signals of an antenna unit to reduce the beam scanning coverage time of a detection airspace.
(2) The multi-channel receiving frequency conversion module sends signals received by each antenna unit to the processor, the processor performs digital beam forming after sampling simultaneously, and forms a plurality of beams in the area of the coverage area of the antenna unit simultaneously, thereby greatly reducing the beam scanning coverage time of a detection airspace and tracking a plurality of targets simultaneously.
(3) Through the phase control of each channel of the transmitting module, a transmitting antenna beam required by the radar is formed, the beam has the phase scanning capability, the rapid airspace coverage of the radar is realized, and meanwhile, the transmitting power has higher synthesis efficiency than the traditional circuit synthesis in a space synthesis mode.
Description of the drawings:
fig. 1 is an overall schematic view of embodiment 1 of the present invention;
FIG. 2 is a front effect diagram of the product structure of the present invention;
fig. 3 is a back effect diagram of the product structure of the present invention.
Description of reference numerals:
1. the device comprises a transmitting module, 2, a wave frequency control motherboard, 3, a receiving frequency conversion module, 4, a frequency synthesis module, 5, a power division module, 6, a transmitting antenna, 7 and a receiving antenna.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 3, a Ku frequency band search alarm radar radio frequency front end includes a transmitting module 1, a wave frequency control motherboard 2, a receiving frequency conversion module 3, a transmitting antenna 6, a receiving antenna 7, a frequency synthesis module 4, and a power division module 5; the signal output part of the receiving antenna 7 is connected with the first signal input part of the receiving frequency conversion module 3, the signal output part of the frequency synthesizing module 4 is connected with the signal input part of the power dividing module 5, the signal output part of the power dividing module 5 is connected with the second signal input part of the receiving frequency conversion module 3, the signal output part of the receiving frequency conversion module 3 is connected with the signal input part of the radar signal processor, the signal output part of the radar signal processor is connected with the signal input part of the wave frequency control mother board 2, the signal output part of the wave frequency control mother board module 2 is connected with the signal input part of the transmitting module 1, and the signal output part of the transmitting module 1 is connected with the signal input part of the transmitting antenna 6.
The radar echo signal received by the receiving antenna 7 is amplified, amplitude-phase controlled, down-converted to an intermediate frequency signal through the receiving frequency conversion module 3 and output to a radar signal processor, while the process is carried out, the power dividing module 5 distributes the clock signal required by the frequency synthesizing module 4 provided for the radar signal processor and the local oscillation signal required by the receiving frequency conversion module 3 to be transmitted to the radar signal processor, the wave control motherboard 2 completes the beam pointing and instruction receiving sent by the radar signal processor, and the antenna beam space synthesis is realized through the resolving and distributing of the antenna unit amplitude-phase control signals, and the antenna calibration mode and the working mode are converted, the functions of temperature acquisition, state feedback and the like of the receiving frequency conversion module 3 and the transmitting module 1 are realized, and finally, the transmitting antenna 6 radiates the amplified signals out of the transmitting module.
The radar echo signals received by the antenna are amplified through the receiving frequency conversion module, amplitude and phase control is carried out, the signals are converted into intermediate frequency signals through down conversion and are output to the radar signal processor, while the process is carried out, the power division module provides clock signals required by the radar signal processor and local oscillator signals required by the receiving frequency conversion module for the frequency synthesis module, the clock signals and the local oscillator signals are distributed to the radar signal processor through the receiving frequency conversion module, beam pointing and instruction receiving sent by the radar signal processor are completed through the wave control motherboard, resolving and distributing of amplitude and phase control signals of the antenna unit are carried out, antenna beam space synthesis is achieved, conversion between an antenna calibration mode and a working mode is achieved, functions of temperature collection, state feedback and the like of the transceiver module are achieved, and finally signals after power amplification of the transmitting module are radiated through the transmitting antenna.
Example 2:
on the basis of embodiment 1, further, the receiving frequency conversion module 3 includes 16 receiving frequency conversion channels, the number of the receiving frequency conversion module 3 is 4, the receiving antenna 7 includes 32 waveguide slot antennas, each antenna has 2 feed ports, and 64 feed ports are provided, which correspond to 64 channels of the receiving frequency conversion module respectively.
The multi-channel receiving frequency conversion module 3 can provide signals received by each antenna unit to the processor, the processor performs digital beam forming after sampling simultaneously, a plurality of beams are formed in the area of the coverage area of the antenna units simultaneously, the beam scanning coverage time of a detection airspace is greatly reduced, and a plurality of targets can be tracked simultaneously.
Example 3:
on the basis of embodiment 1, further, the number of the transmitting modules 1 is 2, the transmitting module 1 includes 8 transmitting channels, the output power of each transmitting channel is greater than 50W, the transmitting antenna 6 includes 4 waveguide slot antennas, each waveguide slot antenna of the transmitting antenna 6 has 4 feed ports, and 16 feed ports in total correspond to 16 channels of the transmitting module respectively.
Through the phase control of each channel of the transmitting module 1, a transmitting antenna beam required by the radar is formed, the beam has the phase scanning capability, the rapid airspace coverage of the radar is realized, and meanwhile, the transmitting power has higher synthesis efficiency than the traditional circuit synthesis in a space synthesis mode.
Example 4:
on the basis of embodiment 1, the receiving frequency conversion module 3 further includes 16 receiving frequency conversion channels, the number of the receiving frequency conversion module 3 is four, the receiving antenna 7 includes 32 waveguide slot antennas, each antenna includes two feed ports, 64 feed ports in total, which correspond to 64 channels of the receiving frequency conversion module, respectively, the transmitting module 1 includes 8 transmitting channels, the output power of the channels is greater than 50W, the total transmitting power of the radar is greater than 800W, the number of the transmitting module 1 is 2, the transmitting antenna 6 includes four waveguide slot antennas, each antenna includes 4 feed ports, 16 feed ports in total, which correspond to 16 channels of the transmitting module, respectively.
The multichannel receiving frequency conversion module 3 can provide signals received by each antenna unit for a processor, the processor performs digital beam forming after sampling simultaneously, a plurality of beams are formed simultaneously in the area of the coverage area of the antenna units, the beam scanning coverage time of a detection airspace is greatly reduced, a plurality of targets can be tracked simultaneously, phase control of each channel through the transmitting module 1 is realized, transmitting antenna beams required by radars are formed, the beams have phase scanning capacity, the rapid airspace coverage of the radars is realized, and meanwhile, the transmitting power passes through a space synthesis mode, and the synthesis efficiency is higher than that of a traditional circuit synthesis mode.
The working principle is as follows:
the radar echo signal received by the receiving antenna 7 is amplified, amplitude-phase controlled, down-converted to an intermediate frequency signal through the receiving frequency conversion module 3 and output to a radar signal processor, while the process is carried out, the power dividing module 5 distributes the clock signal required by the frequency synthesizing module 4 provided for the radar signal processor and the local oscillation signal required by the receiving frequency conversion module 3 to be transmitted to the radar signal processor, the wave control motherboard 2 completes the beam pointing and instruction receiving sent by the radar signal processor, and the antenna beam space synthesis is realized through the resolving and distributing of the antenna unit amplitude-phase control signals, and the antenna calibration mode and the working mode are converted, the functions of temperature acquisition, state feedback and the like of the receiving frequency conversion module 3 and the transmitting module 1 are realized, and finally, the transmitting antenna 6 radiates the signal after the power amplification of the transmitting module 1.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (3)
1. A Ku frequency band search alarm radar radio frequency front end comprises a transmitting module, a wave frequency control mother board, a receiving frequency conversion module, a transmitting antenna and a receiving antenna, and is characterized by also comprising a frequency synthesis module and a power division module; the signal output end of the receiving antenna is connected with the first signal input end of the receiving frequency conversion module, the signal output end of the frequency synthesizing module is connected with the signal input end of the power dividing module, the signal output end of the power dividing module is connected with the second signal input end of the receiving frequency conversion module, the signal output end of the receiving frequency conversion module is connected with the signal input end of the radar signal processor, the signal output end of the radar signal processor is connected with the signal input end of the wave frequency control mother board, the signal output end of the wave frequency control mother board module is connected with the signal input end of the transmitting module, and the signal output end of the transmitting module is connected with the signal input end of the transmitting antenna.
2. The Ku frequency band search alarm radar radio-frequency front end according to claim 1, wherein the reception frequency conversion module includes 16 reception frequency conversion channels, the number of the reception frequency conversion modules is 4, the reception antenna includes 32 waveguide slot antennas, each waveguide slot of the reception antenna has 2 feed ports, and 64 feed ports are provided, and the feed ports correspond to 64 reception frequency conversion channels of the reception frequency conversion module respectively.
3. The Ku frequency band search alarm radar radio-frequency front end according to claim 1, wherein the number of the transmitting modules is 2, the transmitting modules include 8 transmitting channels, output power of each transmitting channel is greater than 50W, the transmitting antennas include 4 waveguide slot antennas, each waveguide slot antenna of the transmitting antennas has 4 feed ports, and the feed ports total 16 feed ports respectively correspond to 16 transmitting channels of the transmitting modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921060980.9U CN210465674U (en) | 2019-07-08 | 2019-07-08 | Ku frequency band search alarm radar radio frequency front end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921060980.9U CN210465674U (en) | 2019-07-08 | 2019-07-08 | Ku frequency band search alarm radar radio frequency front end |
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| CN210465674U true CN210465674U (en) | 2020-05-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114706071A (en) * | 2022-03-31 | 2022-07-05 | 扬州宇安电子科技有限公司 | Radar signal reconnaissance alarm equipment based on drone platform and method thereof |
| CN116106892A (en) * | 2023-04-11 | 2023-05-12 | 扬州宇安电子科技有限公司 | Target plane platform-based reconnaissance equipment alarming method |
-
2019
- 2019-07-08 CN CN201921060980.9U patent/CN210465674U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114706071A (en) * | 2022-03-31 | 2022-07-05 | 扬州宇安电子科技有限公司 | Radar signal reconnaissance alarm equipment based on drone platform and method thereof |
| CN114706071B (en) * | 2022-03-31 | 2023-09-15 | 扬州宇安电子科技有限公司 | Radar signal reconnaissance alarm device and method based on target plane platform |
| CN116106892A (en) * | 2023-04-11 | 2023-05-12 | 扬州宇安电子科技有限公司 | Target plane platform-based reconnaissance equipment alarming method |
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Address after: No. 2806, 28th Floor, Building 2, No. 530, Middle Section of Tianfu Avenue, Chengdu High tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu City, Sichuan Province, 610000 Patentee after: CHENGDU RAXIO SHENGTONG ELECTRONIC TECHNOLOGY CO.,LTD. Address before: Floor 1, building 1, No.6 Kexin Road, high tech Zone (West District), Chengdu, Sichuan 610000 Patentee before: CHENGDU RAXIO SHENGTONG ELECTRONIC TECHNOLOGY CO.,LTD. |
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