CN110320500A - A kind of high integration, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end - Google Patents
A kind of high integration, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end Download PDFInfo
- Publication number
- CN110320500A CN110320500A CN201910495247.8A CN201910495247A CN110320500A CN 110320500 A CN110320500 A CN 110320500A CN 201910495247 A CN201910495247 A CN 201910495247A CN 110320500 A CN110320500 A CN 110320500A
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- transmitting
- receiving
- frequency front
- phased array
- active phased
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Classifications
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- 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
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
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- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of high integration, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, use monolithic microwave multilayer board for carrier, on board simultaneously integrated array antenna, transmitting-receiving subassembly, low-converter, corrective network and digital control module, array antenna is for receiving and emitting radiofrequency signal, transmitting-receiving subassembly is used for the amplification of transceiving radio frequency signal, phase shift, decaying and transmitting-receiving, the switching of correction mode, low-converter is used to receive the down coversion of echo-signal, corrective network is used to carry out each transceiver channel the correction of phase error, digital control module is for amplifiers at different levels in completion system, the control of switch and phase shifter.The present invention uses integrated design scheme, and structure is simple, effectively reduces the volume and weight of Connectors for Active Phased Array Radar radio-frequency front-end, reduces system cost.
Description
Technical field
The present invention relates to phased array technology fields, and in particular to a kind of high integration, inexpensive active phased array thunder
Up to radio-frequency front-end.
Background technique
Phased-array radar can change beam direction by automatically controlled mode and be scanned, with tradition machinery scanning radar phase
The advantages such as, data transfer rate high, target capacity big, strong antijamming capability more flexible than with beam position.Phased-array radar can be divided into nothing
Source phased-array radar and Connectors for Active Phased Array Radar, compared with inactive phased array, each component of active phased array can be independent
Transceiving electromagnetic wave has superior technical performance and better development prospect, is the weight of the following phased array technology development
Want trend.
In the radio-frequency front-end system of conventional active phased-array radar, the modules such as antenna, transmitting-receiving subassembly self-contained in structure
Integrally, respectively discrete, connection electrically is realized by interconnection elements such as cable, connectors, causes system structure many and diverse,
Volume, weight, power consumption are all difficult to be controlled, the cost of radar system also with array scale increase and sharply mention
It rises.
Summary of the invention
The purpose of the present invention is to provide a kind of high integration, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end.
The technical solution for realizing the aim of the invention is as follows: a kind of high integration, inexpensive Connectors for Active Phased Array Radar radio frequency
Front end uses microwave multilayer printed circuit board for carrier, integrated array antenna, transmitting-receiving subassembly, the lower change simultaneously on monolithic board
Frequency device, corrective network and digital control module, array antenna are penetrated for receiving and emitting radiofrequency signal, transmitting-receiving subassembly for receiving and dispatching
Amplification, phase shift, decaying and the transmitting-receiving of frequency signal, the switching of correction mode, low-converter are used for the down coversion to echo-signal
It receives, corrective network is used to carry out each transceiver channel the correction of phase error, and digital control module is for each in completion system
The control of grade amplifier, switch and phase shifter；The transmitting-receiving subassembly includes multichannel transceiver channel, power splitter and public branch all the way
Road, the common branch constitute series and parallel structure by 4 electronic switches, by the switchable state radio-frequency front-end for controlling each switch
It works in emission mode, reception pattern, transmitting correction mode and receives correction mode.
Compared with prior art, the invention has the benefit that the present invention is using before integrated active phased array radio frequency
Implementation is held, using monolithic printed circuit board as support plate, antenna integrated simultaneously on a printed circuit board, feeding network, power supply point
Distribution network and digital control network, the transmitting of monolith board collection big signal, small signal receive, digital phase shift and power management function with
One, eliminates a large amount of connectors, radio-frequency cable and mechanical support structure, structure is simple, significantly reduces processing complexity, subtracts
The small volume and weight of phased-array radar radio-frequency front-end, reduces system cost.
Detailed description of the invention
Fig. 1 is high integration of the present invention, inexpensive Connectors for Active Phased Array Radar structure of radio-frequency front end schematic diagram.
Specific embodiment
As shown in Figure 1, a kind of high integration, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, multilayered printed using microwave
Circuit board is carrier, integrated array antenna, transmitting-receiving subassembly, low-converter, corrective network and the number control simultaneously on monolithic board
Molding block, array antenna are used for the amplification of transceiving radio frequency signal, phase shift, decline for receiving and emitting radiofrequency signal, transmitting-receiving subassembly
Subtract and receive and dispatch, the switching of correction mode, low-converter is used to receive the down coversion of echo-signal, and corrective network is used for each
Transceiver channel carries out the correction of phase error, and digital control module is for amplifier, switch and phase shifters at different levels in completion system
Control；
The transmitting-receiving subassembly includes multichannel transceiver channel, power splitter and common branch all the way, and the common branch is by 4 electricity
Sub switch constitutes series and parallel structure, and the switchable state radio-frequency front-end by controlling each switch works in emission mode, receives mould
Formula, transmitting correction mode and reception correction mode.
The array antenna is made of printed antenna and antenna-reflected plate.
Every road transceiver channel includes a transmitting branch, a receiving branch, two electronic switches and a digital phase shift
Device, transmitting branch include sequentially connected amplifier, matching attenuation and intermediate power amplifier；Receiving branch input to output end according to
Secondary connection first order low-noise amplifier, matching attenuation, switch and second level low-noise amplifier, digital phase shifter use 6bit
Digital phase shifter HMC649PL64E carries out phase shift to radio-frequency receiving-transmitting signal.
The power splitter uses Wilkinson microstrip line power splitter.
The low-converter includes that image frequency inhibits frequency mixer, electric bridge, automatic gain controller, attenuator, two-stage to put
Big device and bandpass filter, are sequentially connected image-reject mixer, electric bridge, first order bandpass filtering from input terminal to output end
Device, first order amplifier, automatic gain controller, attenuator, second level amplifier and second level bandpass filter.
The corrective network includes coupler and power splitter, and coupler is set near each feeder, power splitter side
Port connects each coupler, and a side ports connect common branch.
Digital control module uses fpga chip XC3S50AN.
The present invention uses integrated design scheme, and structure is simple, more light, before significantly reducing phased-array radar radio frequency
The volume and weight at end provides effective way for the cost effective and small light of phased-array radar.
The following describes the present invention in detail with reference to examples.
Embodiment
The present embodiment provides a kind of high integration, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, print electricity using monolithic
Road plate is realized.Referring to Fig.1, entire radio-frequency front-end includes aerial array 1, transmitting-receiving subassembly 2, low-converter 3,4 sum number of corrective network
Word control module 5.Monolith board integrates big signal transmitting, the reception of small signal, digital phase shift and power management function.
Aerial array 1 is made of printed antenna, and assembles aluminum antenna-reflected plate in array rear end, to reflect focused antenna
Signal and the electromagnetic wave for stopping shielding opposite direction.
Transmitting-receiving subassembly 2 is by multichannel transceiver channel, power splitter and all the way common branch is constituted.Every road transceiver channel includes one
A transmitting branch, a receiving branch, two electronic switches and a digital phase shifter.Transmitting branch includes sequentially connected puts
Big device, matching attenuation and intermediate power amplifier；Receiving branch input to output end be sequentially connected first order low-noise amplifier,
With decaying, switch and second level low-noise amplifier；Digital phase shifter uses 6bit digital phase shifter HMC649PL64E, to penetrating
Frequency receiving and transmitting signal carries out phase shift, realizes the Beam synthesis function of phased array antenna.
Since the differential loss in transceiver channel due to digital phase shifter is larger, for the noise coefficient for guaranteeing receiving channel, every road
Two-stage low-noise amplifier is devised in transmitting branch, amplifier gain is improved, the noise coefficient of receiving channel is effectively reduced.
In addition, using the intermediate power amplifier HMC407MS8G of Hittite company, tool in transmitting branch to guarantee transmission power
There is good power conversion ratio.
Power splitter in transmitting-receiving subassembly 2 using two power splitter of Wilkinson equal part through multi-stage cascade realize one point of road N etc.
Power distribution, the network is in design in conjunction with the device layout of entire radio-frequency front-end and signal routing to port position and transmission road
Diameter carries out unified planning, it is ensured that the phase equalization of each interchannel.
Common branch in transmitting-receiving subassembly 2 is connected and composed by four electronic switch HMC536MS8GE, using series and parallel structure
Interconnection.Wherein, cascaded structure is responsible for the selection of signal path, and parallel-connection structure main function is improved between sending and receiving and correction channel
Isolation.Switchable state radio-frequency front-end by controlling each switch works in emission mode, reception pattern, transmitting straightening die
Formula and reception correction mode.
The concrete mode that common branch carries out pattern switching is as follows:
The access of gating switch W4 to switch W3 closes remaining access, and pumping signal is by switch W4 and switch W3 input hair
Branch is penetrated, front end works in emission mode at this time.The access of gating switch W3 to W2, closes remaining access, and receiving branch receives
Echo-signal through switch W3 and switch W2 input low-converter 3, front end works in reception pattern at this time.Gating switch W4 is to opening
The access of W3 and the access of switch W1 to W2 are closed, closes remaining access, pumping signal is by switch W4 and switch W3 input transmitting
Branch inputs low-converter 3 through switch W1 and switch W2 further through corrective network, and front end works in transmitting correction mode at this time.
The access of gating switch W4 to W1 and the access of switch W3 to W2, close remaining access, pumping signal is by switch W4 and switch
After W1 inputs corrective network, by inputting low-converter 3 through switch W3 and switch W2 by receiving branch, front end, which works in, at this time is connect
Receive correction mode.
3 input to output end of low-converter is sequentially connected image-reject mixer, electric bridge, first order bandpass filter,
First stage amplifier, automatic gain controller, fixed attenuation, second level amplifier and second level bandpass filter.
Corrective network 4 includes coupler and power splitter.Coupler is set near each feeder, one side ports of power splitter
Each coupler is connected, a side ports connect common branch, and each access uses isometric design, to guarantee that the phase between each access is consistent
Property.
The working principle of corrective network 4 is as follows:
Reception timing is carried out, gate pumping signal in common branch simultaneously to the access of corrective network 4 and receives branch
Road to low-converter 3 access.Pumping signal road is inputted in corrective network 4, function point to each coupler, and by coupler by portion
Divide in energy coupling to each feeder.Meanwhile the first via receiving channel in transmitting-receiving subassembly is opened, and close remaining and receive and lead to
Road receives and acquires the pumping signal being coupled on feeder.Remaining receiving channel is successively opened, is repeated the above steps.Meter
The phase difference between each receiving channel and first via receiving channel received signal is calculated, the correction coefficient of each receiving channel is obtained.
Transmitting timing is carried out, gates the access and corrective network of pumping signal to transmitting branch in common branch simultaneously
4 to low-converter 3 access.First via transmission channel is opened, pumping signal is inputted into transmission channel.Meanwhile pumping signal passes through
Feeder coupling unit energy is inputted after common branch by power splitter to coupler and is received and acquired by system.Successively beat
Remaining transmission channel is opened, is repeated the above steps.Calculate the signal of each road transmission channel and the phase between first via transmission channel signal
Potential difference obtains the correction coefficient of each transmission channel.
Digital control module 5 includes fpga chip XC3S50AN, is realized to amplifiers at different levels in circuit, electronic switch sum number
The control of word phase shifter.
Claims (7)
1. a kind of high integration, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, which is characterized in that use the multilayered printed electricity of microwave
Road plate is carrier, integrated array antenna, transmitting-receiving subassembly, low-converter, corrective network and digital control simultaneously on monolithic board
Module；Array antenna is used for amplification, phase shift, the decaying of transceiving radio frequency signal for receiving and emitting radiofrequency signal, transmitting-receiving subassembly
And transmitting-receiving, the switching of correction mode, low-converter are used to receive the down coversion of echo-signal, corrective network is used for each receipts
The correction that channel carries out phase error is sent out, digital control module is for amplifiers at different levels in completion system, switch and phase shifter
Control；The transmitting-receiving subassembly includes multichannel transceiver channel, power splitter and common branch all the way, and common branch is by 4 electronic switches
Series and parallel structure is constituted, the switchable state radio-frequency front-end by controlling each switch works in emission mode, reception pattern, transmitting
Correction mode and reception correction mode.
2. high integration according to claim 1, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, which is characterized in that institute
Array antenna is stated to be made of printed antenna and antenna-reflected plate.
3. high integration according to claim 1, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, which is characterized in that every
Road transceiver channel includes a transmitting branch, a receiving branch, two electronic switches and a digital phase shifter, transmitting branch
Including sequentially connected amplifier, matching attenuation and intermediate power amplifier；Receiving branch input to output end is sequentially connected first
Grade low-noise amplifier, matching attenuation, switch and second level low-noise amplifier, digital phase shifter use 6bit digital phase shifter
HMC649PL64E carries out phase shift to radio-frequency receiving-transmitting signal.
4. high integration according to claim 1, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, which is characterized in that institute
Power splitter is stated using Wilkinson microstrip line power splitter.
5. high integration according to claim 1, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, which is characterized in that institute
Stating low-converter includes that image frequency inhibits frequency mixer, electric bridge, automatic gain controller, attenuator, dual-stage amplifier and band logical
Filter is sequentially connected image-reject mixer, electric bridge, first order bandpass filter, the first order from input terminal to output end and puts
Big device, automatic gain controller, attenuator, second level amplifier and second level bandpass filter.
6. high integration according to claim 1, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, which is characterized in that institute
Stating corrective network includes coupler and power splitter, and coupler is set near each feeder, and the connection of one side ports of power splitter is each
Coupler, a side ports connect common branch.
7. high integration according to claim 1, inexpensive Connectors for Active Phased Array Radar radio-frequency front-end, which is characterized in that number
Word control module uses fpga chip XC3S50AN.
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| CN201910495247.8A CN110320500B (en) | 2019-06-10 | 2019-06-10 | High-integration-level low-cost active phased array radar radio frequency front end |
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| CN201910495247.8A CN110320500B (en) | 2019-06-10 | 2019-06-10 | High-integration-level low-cost active phased array radar radio frequency front end |
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| CN110320500A true CN110320500A (en) | 2019-10-11 |
| CN110320500B CN110320500B (en) | 2023-06-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110911834A (en) * | 2019-12-02 | 2020-03-24 | 成都瑞迪威科技有限公司 | Phased array antenna capable of realizing left-right rotation circular polarization switching |
| CN110927674A (en) * | 2019-11-15 | 2020-03-27 | 张明 | Millimeter wave radar chip with two-dimensional scanning function |
| CN110927675A (en) * | 2019-11-15 | 2020-03-27 | 张明 | Energy-cascade millimeter wave radar chip |
| CN110988809A (en) * | 2019-12-18 | 2020-04-10 | 中国电子科技集团公司第二十研究所 | Phased array front end based on nonlinear active antenna |
| CN111245469A (en) * | 2020-01-17 | 2020-06-05 | Oppo广东移动通信有限公司 | Radio frequency circuit and electronic device |
| CN111614372A (en) * | 2020-06-15 | 2020-09-01 | 中国电子科技集团公司第五十四研究所 | Ku frequency band phased array antenna transceiving component for satellite communication |
| CN112180352A (en) * | 2020-08-24 | 2021-01-05 | 西安空间无线电技术研究所 | High-integration-level comprehensive radio frequency sensing array system |
| CN112485780A (en) * | 2020-11-05 | 2021-03-12 | 上海大学 | Radar-measuring material three-dimensional material level sensor system with phased array antenna |
| CN113015199A (en) * | 2021-02-24 | 2021-06-22 | 上海豪锦通信科技有限公司 | Phase matrix correction method and device |
| CN113300107A (en) * | 2021-01-27 | 2021-08-24 | 中国电子科技集团公司第三十八研究所 | Active antenna, standard value acquisition method and correction method |
| CN113938146A (en) * | 2021-08-25 | 2022-01-14 | 北京遥测技术研究所 | High integrated ultra-low noise tile formula receiving component of Ka frequency channel |
| WO2022067609A1 (en) * | 2020-09-30 | 2022-04-07 | 华为技术有限公司 | Multi-band phased array and electronic device |
| CN112180352B (en) * | 2020-08-24 | 2024-06-11 | 西安空间无线电技术研究所 | High-integration comprehensive radio frequency sensing array system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022067609A1 (en) * | 2020-09-30 | 2022-04-07 | 华为技术有限公司 | Multi-band phased array and electronic device |
| CN112485780A (en) * | 2020-11-05 | 2021-03-12 | 上海大学 | Radar-measuring material three-dimensional material level sensor system with phased array antenna |
| CN113300107A (en) * | 2021-01-27 | 2021-08-24 | 中国电子科技集团公司第三十八研究所 | Active antenna, standard value acquisition method and correction method |
| CN113015199A (en) * | 2021-02-24 | 2021-06-22 | 上海豪锦通信科技有限公司 | Phase matrix correction method and device |
| CN113015199B (en) * | 2021-02-24 | 2024-03-22 | 上海豪锦通信科技有限公司 | Phase matrix correction method and device |
| CN113938146A (en) * | 2021-08-25 | 2022-01-14 | 北京遥测技术研究所 | High integrated ultra-low noise tile formula receiving component of Ka frequency channel |
| CN113938146B (en) * | 2021-08-25 | 2023-03-28 | 北京遥测技术研究所 | High integrated ultra-low noise tile formula receiving component of Ka frequency channel |
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