CN104090268B - A kind of reentrant type microwave components based on truetimedelay technology - Google Patents
A kind of reentrant type microwave components based on truetimedelay technology Download PDFInfo
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- CN104090268B CN104090268B CN201410293431.1A CN201410293431A CN104090268B CN 104090268 B CN104090268 B CN 104090268B CN 201410293431 A CN201410293431 A CN 201410293431A CN 104090268 B CN104090268 B CN 104090268B
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- port
- passage
- output port
- truetimedelay
- reentrant type
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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
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S2013/0236—Special technical features
- G01S2013/0245—Radar with phased array antenna
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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
The present invention relates to a kind of reentrant type microwave components based on truetimedelay technology, output port and four road input ports are used to be in the same side of dielectric-slab, ensure that the output port of public passage and the input port of four tunnels reception passage are in the same side of cavity, achieve the microwave receiving assembly of a kind of reentrant type, it is simple in the rear end of phased array antenna, assembly is plugged.Metallic walls in cavity can realize radiofrequency signal and use the plug-in radio-frequency joint of miniaturization at each port of power combiner and each interchannel high-isolation, input/output port, it is simple to the dismounting of microwave components and installation.The present invention, on the basis of ensureing phase shifting accuracy, by the true time delay of public passage chronotron, reduces the aperture fill time of antenna, expands the instantaneous signal bandwidth of phased array antenna.Achieve multifunctional application and the cost control of TTD phased-array radar, improve the capacity of resisting disturbance of radar system.
Description
Technical field
The invention belongs to radio frequency microwave circuit technical field, relate to a kind of reentrant type microwave components based on truetimedelay technology,
It it is a kind of reentrant type microwave components with truetimedelay True Time Delay:TTD function.
Background technology
Microwave components is the vitals of phased array radar system, along with the development of phased-array radar, to microwave components
Functional requirement is more and more higher.What the beam scanning of phased array antenna relied primarily on is simple in construction in feed system, property
The digital phase shifter that energy is stable, controls phase shifter change beam position by beam controlling system.At present, phased array antenna is subject to
To the restriction of following condition, directly affect radar system application prospect in national defence.Its major limitation condition is as follows:
1, the instantaneous signal bandwidth of phased array antenna is generally the narrowest, directly affects radar to the resolution of target, identification ability
With solve the problem such as multi-target imaging, the capacity of resisting disturbance of radar is also had certain limitations.
2, in radar application, traditional microwave receiving assembly two ends fixed reception antenna and beam steering system respectively.
Due to the linkage editor of its complexity, directly result in reprocess at experiment test, parts, when performance updates, microwave
Assembly is unfavorable for dismounting and installs.
TTD phased-array radar, common phased-array radar and numeral phased-array radar are three directions of radar development.Adopt
The narrow instant bandwidth problem that current phased array antenna exists is can solve with the microwave components of Real-time Delay device, available
Optical fiber, coaxial cable and GaAs MMIC GaAs single-chip is mainly had as chronotron material in TTD phased array antenna
Microwave integrated circuit chronotron.The loss of optical fiber itself is less, but the loss of photoelectric device is relatively big, current light
Electrical part cost is the highest, and these reasons limit the application of fiber delay time device.The chronotron of coaxial cable need not light
Electricity and electro-optic conversion, but its shortcoming big, loss height that is volume.Chronotron based on GaAs MMIC, this chronotron is same
Sample need not photoelectricity and electro-optic conversion, and its loss is relatively low, volume is little, be conveniently applied to the microwave components of radar system
In.
Summary of the invention
Solve the technical problem that
In place of the deficiencies in the prior art, the present invention proposes a kind of reentrant type microwave group based on truetimedelay technology
Part, adapts to the development trend of current phased-array radar.
Technical scheme
A kind of reentrant type microwave components based on truetimedelay technology, it is characterised in that include that four tunnels receive passage, power closes
Grow up to be a useful person, truetimedelay public passage and dielectric-slab；Cavity layout on dielectric-slab is: the output port of power combiner
7 and four input ports 6 be positioned at the same side of dielectric-slab, output port 7 is positioned at center, the both sides of output port 7
It is respectively provided with two-way and receives the input port 6 of passage；The cavity being connected with output port 7 is public passage 5, with input
The cavity that port 6 is connected is for receiving passage；The layout of the printed circuit board being provided with on dielectric-slab is: four tunnels receive
Channel design is symmetrical, and it is microwave chip amplitude limiter from input port 6 order arrangement that every road receives the circuit layout on passage
8, the first low-noise amplifier 9, numerical-control attenuator 10 and digital phase shifter 11；Circuit layout on public passage 5
It is chronotron the 15, second low-noise amplifier 14, the output port of power combiner from output port 7 order arrangement
13 and power combiner 12；Receive channel output end mouth, public passage input port and power combiner port smooth right
Together；Receiving passage and all use microstrip transmission line with power combiner and public passage, on micro-strip dielectric-slab, fluting is placed
Microwave chip, the input/output port of microwave chip is connected with the gold wire bonding line that is connected by of microstrip line；Four inputs
The aerial signal received is sequentially passed through microwave chip amplitude limiter the 8, first low-noise amplifier 9 by port 6, numerical control declines
Subtract device 10, digital phase shifter 11, subsequently into power combiner 12；The radiofrequency signal output by power combiner
Port 13 realizes reentrant type transmission, and the radiofrequency signal after synthesis enters public passage 5, sequentially passes through the second low noise and put
Big device 14 and chronotron 15.Signal after time delay exports at output port 7, it is achieved that input port and output port
Orientation consistency.
Described dielectric-slab epicoele body wall is metallic walls, it is achieved radiofrequency signal is at each port of power combiner and each passage
Between isolation.
Described power combiner 12 substrate is selected and radio-frequency channel same media, the micro-strip plate of same thickness.
Described digital phase shifter uses the phase shifting accuracy 6 digital phase shifters less than 3 °.
Described input/output port uses plug-in radio-frequency joint.
Described radio-frequency joint uses the SMP of plug-in.
Beneficial effect
A kind of based on truetimedelay technology the reentrant type microwave components that the present invention proposes, uses output port and the input of four tunnels
Port is in the same side of dielectric-slab, it is ensured that the output port of public passage and four tunnels receive at the input port of passage
The same side in cavity, it is achieved that the microwave receiving assembly of a kind of reentrant type, it is simple in the rear end of phased array antenna to group
Part plugs.Metallic walls in cavity can realize radiofrequency signal at each port of power combiner and each interchannel
High-isolation, input/output port use miniaturization plug-in radio-frequency joint, it is simple to the dismounting of microwave components and peace
Dress.
The present invention is in phased array antenna submatrix, and four tunnels receive passage and share the public output channel that chronotron is contained on a road.
Radiofrequency signal, through receiving the amplitude limit of passage, is amplified, and decay and phase shift process, and is then passed through power combiner and enters public affairs
Common road.Every road receives passage and all contains digital phase shifter, on the basis of ensureing phase shifting accuracy, passes through public passage
The true time delay of chronotron, reduces the aperture fill time of antenna, expands the instantaneous signal bandwidth of phased array antenna.
Achieve multifunctional application and the cost control of TTD phased-array radar, improve the capacity of resisting disturbance of radar system.
In the present invention, reentrant type microwave components based on TTD technology is the most important functions module of TTD phased array antenna,
Its advantage is as follows:
1, the instantaneous signal bandwidth of phased array antenna can be expanded, make radar have width two class signal simultaneously, use width
Band signal can complete the high-resolution to target measure and identify, use narrow band signal can complete the search to target,
Capture and tracking, it is achieved the multifunctional application of radar, improve the capacity of resisting disturbance of radar.
2, on the one hand the microwave components of reentrant type structure is beneficial to detachable maintaining in the actual application of phased-array radar, another
Aspect is beneficial to the phased-array radar update when life-time service so that it is have extensibility.
3, four tunnels receive passage and share a chronotron, on the one hand ensure the truetimedelay performance of phased array antenna submatrix, separately
On the one hand the development cost of phased array antenna is controlled.
4, the metallic walls in cavity can realize radiofrequency signal at each port of power combiner, and assembly is interchannel
High-isolation.
Accompanying drawing explanation
Fig. 1 is microwave components schematic diagram based on TTD technology.
Fig. 2 is the cavity body structure figure of reentrant type microwave components.
Fig. 3 is the printed circuit board figure of reentrant type microwave components.
1-first receives passage, and 2-second receives passage, and 3-the 3rd receives passage, and 4-the 4th receives passage, and 5-is public
Passage, 6-receives channel radio frequency port, and 7-exports prevention at radio-frequency port, 8-microwave chip amplitude limiter, and 9-receives passage low noise
Acoustic amplifier, 10-numerical-control attenuator, 11-digital phase shifter, 12-power combiner, the output of 13-power combiner
Port, 14-output low noise amplifier, 15-chronotron.
Detailed description of the invention
In conjunction with embodiment, accompanying drawing, the invention will be further described:
Microwave components based on TTD technology is to realize the many dynamic applicable key components of TTD radar system.The most right
Than relying on digital phase shifter to change the phased array antenna of beam position at present, chronotron is used to reduce at microwave components
The antenna aperature transition time, expand the instantaneous signal bandwidth of phased array antenna.On the other hand closed by appropriate design power
Grow up to be a useful person, and the cavity body structure of microwave components, propose the microwave components of a kind of reentrant type structure, simplify traditional microwave group
What part was loaded down with trivial details removes and installs step, it is simple to the detachable maintaining of phased array antenna and update.
Fig. 1 is microwave components schematic diagram based on TTD technology.After antenna port receives four tunnel radiofrequency signals, successively
Through amplitude limiter, low-noise amplifier, numerical-control attenuator, digital phase shifter, subsequently into power combiner, power
Four tunnel radiofrequency signals are synthesized a road and enter the public passage of microwave components by synthesizer.Four tunnels reception passages share a road and contain
Having the public output channel of chronotron, public passage carries out loss balancing by low-noise amplifier to radiofrequency signal, so
After after 5 GaAs MMIC chronotron export.Use chronotron that radiofrequency signal is carried out true time delay, fall
The aperture fill time of low antenna, has increased the instantaneous signal bandwidth of phased array antenna.
Fig. 2 is the cavity body structure figure of reentrant type microwave components, and cavity layout is: the output port of power combiner 7 with
Four input ports 6 are positioned at the same side of dielectric-slab, and output port 7 is positioned at center, and the both sides of output port 7 respectively set
Two-way is had to receive the input port 6 of passage；The cavity being connected with output port 7 is public passage 5, with input port
6 cavitys being connected are for receiving passage.
Fig. 3 is the printed circuit board figure of reentrant type microwave components, and layout is: it is symmetrical that four tunnels receive channel design, every road
Receive circuit layout on passage from input port 6 order arrangement be microwave chip amplitude limiter 8, low-noise amplifier 9,
Numerical-control attenuator 10 and digital phase shifter 11；Circuit layout on public passage 5 from output port 7 order arrangement is
Chronotron 15, low-noise amplifier 14, the output port 13 of power combiner and power combiner 12.
First receives passage 1, second receives four tunnels receptions of passage the 2, the 3rd reception passage the 3, the 4th reception passage 4
Passage principle is identical, symmetrical configuration.To receive as a example by passage 1, prevention at radio-frequency port 6 is by the aerial signal that receives successively
Through microwave chip amplitude limiter 8, low-noise amplifier 9, numerical-control attenuator 10, digital phase shifter 11, subsequently into
Power combiner 12.In order to ensure the scanning accuracy of beam position, the phase shifting accuracy 6 figure place controls less than 3 ° are selected to move
Phase device.Receive passage, power combiner and public passage and all use microstrip transmission line, micro-strip dielectric-slab is slotted and puts
Putting microwave chip, the input/output port of microwave chip is connected by gold wire bonding Wiring technology with microstrip line.
Power combiner 12 substrate is selected and radio-frequency channel same media, the micro-strip plate of same thickness.Reception passage exports
Port, public passage input port and the smooth alignment of power combiner port, use gold wire bonding line to connect.Radio frequency is believed
Number realizing reentrant type by the output port 13 of power combiner transmits, and the radiofrequency signal after synthesis enters public passage 5,
Sequentially pass through low-noise amplifier 14 and chronotron 15.Signal after time delay exports at prevention at radio-frequency port 7, it is achieved that defeated
Inbound port and the orientation consistency of output port.Radio-frequency joint uses the SMP of plug-in, it is simple to dismantles and assembles.Respectively
Individual interchannel metallic walls intercepts interchannel electromagnetic scattering effectively, it is ensured that interchannel high-isolation.Such knot
Structure design both ensure that the miniaturization of size of components, also allows for detachable maintaining and the renewal of microwave components in phased array antenna
Regenerate.
In use, user should be first according to the requirement of phased array antenna work, appropriate design microwave components for the present invention
Amplification, phase shifting accuracy, chronotron figure place and physical dimension, it is ensured that the feasibility of actual application.
Claims (6)
1. a reentrant type microwave components based on truetimedelay technology, it is characterised in that include that four tunnels receive passage, power closes
Grow up to be a useful person, truetimedelay public passage and dielectric-slab；Cavity layout on dielectric-slab is: reentrant type microwave components is defeated
Going out port and four input ports (6) are positioned at the same side of dielectric-slab, output port (7) is positioned at center, defeated
The both sides going out port (7) are respectively provided with the input port (6) of two-way reception passage；It is connected with output port (7)
The cavity connect is public passage (5), and the cavity being connected with input port (6) is for receiving passage；At dielectric-slab
The layout of the printed circuit board being provided with is: it is symmetrical that four tunnels receive channel design, and every road receives the circuit on passage
Layout from input port (6) order arrangement for microwave chip amplitude limiter (8), the first low-noise amplifier (9),
Numerical-control attenuator (10) and digital phase shifter (11)；Circuit layout on public passage (5) is from output port
(7) order arrangement is chronotron (15), the second low-noise amplifier (14), the output port of power combiner
And power combiner (12) (13)；Receive channel output end mouth, public passage input port and power combiner
The smooth alignment of port；Receive passage, power combiner and public passage and all use microstrip transmission line, be situated between in micro-strip
On scutum, fluting places microwave chip, and the input/output port of microwave chip is connected by spun gold key with microstrip line
Zygonema connects；Four input ports (6) aerial signal received is sequentially passed through microwave chip amplitude limiter (8),
First low-noise amplifier (9), numerical-control attenuator (10), digital phase shifter (11), close subsequently into power
Grow up to be a useful person (12)；Radiofrequency signal realizes reentrant type by the output port (13) of power combiner and transmits, after synthesis
Radiofrequency signal enter public passage (5), sequentially pass through the second low-noise amplifier (14) and chronotron (15),
Signal after time delay exports at output port (7), it is achieved that input port and the orientation consistency of output port.
Reentrant type microwave components based on truetimedelay technology the most according to claim 1, it is characterised in that: described medium
The body wall of the cavity on plate is metallic walls, it is achieved radiofrequency signal is at each port of power combiner and each interchannel
Isolation.
Reentrant type microwave components based on truetimedelay technology the most according to claim 1, it is characterised in that: described power
Synthesizer (12) substrate is selected and radio-frequency channel same media, the micro-strip plate of same thickness.
Reentrant type microwave components based on truetimedelay technology the most according to claim 1, it is characterised in that: described numerical control
Phase shifter uses the phase shifting accuracy 6 digital phase shifters less than 3 °.
Reentrant type microwave components based on truetimedelay technology the most according to claim 1, it is characterised in that: described input
Output port uses plug-in radio-frequency joint.
Reentrant type microwave components based on truetimedelay technology the most according to claim 5, it is characterised in that: described radio frequency
Joint uses the SMP of plug-in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410293431.1A CN104090268B (en) | 2014-06-26 | 2014-06-26 | A kind of reentrant type microwave components based on truetimedelay technology |
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| CN201410293431.1A CN104090268B (en) | 2014-06-26 | 2014-06-26 | A kind of reentrant type microwave components based on truetimedelay technology |
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| CN104090268A CN104090268A (en) | 2014-10-08 |
| CN104090268B true CN104090268B (en) | 2016-08-24 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016192009A1 (en) * | 2015-06-01 | 2016-12-08 | 华为技术有限公司 | Combined phase shifter and multi-frequency antenna network system |
| CN106099287A (en) * | 2016-06-22 | 2016-11-09 | 安徽天兵电子科技有限公司 | A kind of high-isolation airproof microwave components |
| CN108768555B (en) * | 2018-08-21 | 2023-04-28 | 无锡华测电子***有限公司 | Digital control type adjustable microwave delayer and delay test method thereof |
| CN109687898A (en) * | 2018-11-24 | 2019-04-26 | 天津大学 | Broadband beams synthesis chip based on active true time delay elements |
| CN109712937B (en) * | 2019-01-02 | 2020-12-18 | 北京振兴计量测试研究所 | Eutectic carrier and microwave device |
| CN110661102B (en) * | 2019-09-29 | 2021-05-07 | 华南理工大学 | Phase shifting device and base station antenna |
| CN112290219A (en) * | 2020-09-16 | 2021-01-29 | 北京无线电测量研究所 | Small-size multichannel moves subassembly |
| CN113156375B (en) * | 2021-03-30 | 2023-04-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Passive phase modulation chip of millimeter wave phased array T/R assembly |
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| JP2012047492A (en) * | 2010-08-24 | 2012-03-08 | Toshiba Corp | Phased array antenna |
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