CN104090268A - Fold-back type microwave component based on real time delay technology - Google Patents
Fold-back type microwave component based on real time delay technology Download PDFInfo
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- CN104090268A CN104090268A CN201410293431.1A CN201410293431A CN104090268A CN 104090268 A CN104090268 A CN 104090268A CN 201410293431 A CN201410293431 A CN 201410293431A CN 104090268 A CN104090268 A CN 104090268A
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- output port
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- power combiner
- truetimedelay
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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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- 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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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to a fold-back type microwave component based on a real time delay technology. An output port and four paths of input ports are arranged on the same side of a dielectric board, it is guaranteed that an output port of a common channel and input ports of four paths of receiving channels are located on the same side of a cavity, the fold-back type microwave component is obtained, and the component is conveniently plugged at the rear end of a phased-array antenna. The high isolation degree of radio-frequency signals between all ports and all channels of a power combiner can be achieved through the metal wall in the cavity, a miniaturization plugging type radio frequency connector is adopted in an input and output port, and the microwave component is conveniently dismounted and mounted. On the basis of guaranteeing the phase shift precision, the aperture transition time of the antenna is reduced through the real time delay of a common channel time delay unit, and the momentary signal bandwidth of the phased-array antenna is expanded. The multifunctional application and cost control over a TTD phased-array radar is achieved, and the antijamming capability of a radar system is improved.
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, 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, also more and more higher to the functional requirement of microwave components.What the beam scanning of phased array antenna mainly relied on is digital phase shifter simple in structure in feed system, stable performance, changes beam position by beam controlling system control phase shifter.At present, phased array antenna is subject to the restriction of following condition, directly affects the application prospect of radar system in national defence.Its major limitation condition is as follows:
1, the momentary signal bandwidth of phased array antenna is conventionally narrower, directly affects the problems such as resolution, recognition capability and the solution multi-target imaging of radar to target, and the antijamming capability of radar is also had to certain limitation.
2,, in radar application, traditional microwave receiving assembly two ends are fixed reception antenna and beam steering system respectively.Due to its complicated linkage editor, directly cause reprocessing at experiment test, parts, in the situation such as performance renewal, microwave components is unfavorable for dismounting and installs.
TTD phased-array radar, common phased-array radar and the Digital Phased Array radar are three directions of radar development.Adopt the microwave components of Real-time Delay device to can solve the narrow instant bandwidth problem that current phased array antenna exists, can be used for TTD phased array antenna and mainly contain optical fiber, concentric cable and GaAs MMIC GaAs single-chip microwave integration circuit chronotron as chronotron material.The loss of optical fiber itself is less, but the loss of photoelectric device is larger, and current photoelectric device cost is also higher, and these reasons have limited the application of fiber delay time device.The chronotron of concentric cable does not need the conversion of photoelectricity and electric light, but that its shortcoming is volume is large, loss is high.Based on the chronotron of GaAs MMIC, this chronotron does not need the conversion of photoelectricity and electric light equally, and its loss compared with low, volume is little, be conveniently applied in the microwave components of radar system.
Summary of the invention
The technical matters solving
For fear of the deficiencies in the prior art part, the present invention proposes a kind of reentrant type microwave components based on truetimedelay technology, adapts to the development trend of current phased-array radar.
Technical scheme
A reentrant type microwave components based on truetimedelay technology, is characterized in that comprising four road receiving cables, power combiner, truetimedelay public passage and dielectric-slab; Cavity layout on dielectric-slab is: the output port 7 of power combiner and 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 are respectively provided with the input port 6 of two-way receiving cable; The cavity being connected with output port 7 is public passage 5, and the cavity being connected with input port 6 is receiving cable; The layout of the printed circuit board being provided with on dielectric-slab is: four road receiving cable structural symmetry, and the circuit layout on the receiving cable of every road arranges as microwave chip limiter 8, low noise amplifier 9, numerical-control attenuator 10 and digital phase shifter 11 from input port 6 orders; Circuit layout on public passage 5 arranges as output port 13 and the power combiner 12 of chronotron 15, low noise amplifier 14, power combiner from output port 7 orders; Receiving cable output port, public passage input port and the smooth alignment of power combiner port; Receiving cable and power combiner and public passage all adopt microstrip transmission line, and on micro-band dielectric-slab, fluting is placed microwave chip, and the input/output port of microwave chip adopts gold wire bonding line to connect with being connected of microstrip line; The aerial signal receiving is passed through successively microwave chip limiter 8, low noise amplifier 9, numerical-control attenuator 10, digital phase shifter 11, then ingoing power compositor 12 by four prevention at radio-frequency port 6; Radiofrequency signal realizes reentrant type transmission by the output port 13 of power combiner, and the radiofrequency signal after synthesizing enters public passage 5, passes through successively low noise amplifier 14 and chronotron 15.Signal after time delay is exported at prevention at radio-frequency port 7, has realized the direction consistance of input port and output port.
Described dielectric-slab epicoele body wall is metallic walls, realizes radiofrequency signal in each port of power combiner and each interchannel isolation.
Described power combiner 12 substrates are selected the micro-band plate with radio-frequency channel same media, same thickness.
6 digital phase shifters that described digital phase shifter adopts phase shifting accuracy to be less than 3 °.
Described input/output port adopts plug-in radio-frequency joint.
Described radio-frequency joint adopts the SMP of plug-in.
Beneficial effect
A kind of reentrant type microwave components based on truetimedelay technology that the present invention proposes, adopt output port Yu Si road input port the same side in dielectric-slab, the input port of output port Yu Si road receiving cable that has ensured public passage the same side in cavity, realize a kind of microwave receiving assembly of reentrant type, be convenient in the rear end of phased array antenna, assembly be plugged.Metallic walls in cavity can realize radiofrequency signal at each port of power combiner and each interchannel high-isolation, and input/output port adopts the plug-in radio-frequency joint of miniaturization, is convenient to dismounting and the installation of microwave components.
The present invention is in phased array antenna submatrix, and four road receiving cables share the public output channel that chronotron is contained on a road.Radiofrequency signal, through the amplitude limit of receiving cable, is amplified, and then decay and phase shift processing enter public passage through power combiner.Every road receiving cable all contains digital phase shifter, is ensureing on the basis of phase shifting accuracy, by postponing the actual time of public passage chronotron, reduces the aperture fill time of antenna, expands the momentary signal bandwidth of phased array antenna.Realize multifunctional application and the cost control of TTD phased-array radar, improved the antijamming capability of radar system.
Reentrant type microwave components based on TTD technology in the present invention is the most important functions module of TTD phased array antenna, and its advantage is as follows:
1, can expand the momentary signal bandwidth of phased array antenna, make radar there are width two class signals simultaneously, use broadband signal can complete the high-resolution detection and identification to target, use narrow band signal can complete search to target, catch and follow the tracks of, realize the multifunctional application of radar, improved the antijamming capability of radar.
2, the microwave components of reentrant type structure is beneficial to detachable maintaining in the practical application of phased-array radar on the one hand, is beneficial on the other hand the update of phased-array radar in the time of long-term use, makes it have extensibility.
3, four road receiving cables share a chronotron, ensure on the one hand the truetimedelay performance of phased array antenna submatrix, control on the other hand the development cost of phased array antenna.
4, the metallic walls in cavity can realize radiofrequency signal at each port of power combiner, and the interchannel high-isolation of assembly.
Brief description of the drawings
Fig. 1 is the 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-the first receiving cable, 2-the second receiving cable, 3-the 3rd receiving cable, 4-the 4th receiving cable, 5-public passage, 6-receiving cable prevention at radio-frequency port, 7-exports prevention at radio-frequency port, 8-microwave chip limiter, 9-receiving cable low noise amplifier, 10-numerical-control attenuator, 11-digital phase shifter, 12-power combiner, the output port of 13-power combiner, 14-output low noise amplifier, 15-chronotron.
Embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
Microwave components based on TTD technology is to realize the how moving applicable key component of TTD radar system.Contrast relies on digital phase shifter to change the phased array antenna of beam position at present on the one hand, uses chronotron can reduce the antenna aperture transit time at microwave components, expands the momentary signal bandwidth of phased array antenna.On the other hand by appropriate design power combiner, and the cavity body structure of microwave components, a kind of microwave components of reentrant type structure is proposed, simplify traditional microwave assembly loaded down with trivial details remove and install step, be convenient to detachable maintaining and the update of phased array antenna.
Fig. 1 is the microwave components schematic diagram based on TTD technology.Antenna port receives after four tunnel radiofrequency signals, passes through successively limiter, low noise amplifier, numerical-control attenuator, digital phase shifter, then ingoing power compositor, and a radiofrequency signal synthetic road in power combiner Jiang Si road enters the public passage of microwave components.Four road receiving cables share the public output channel that chronotron is contained on a road, and public passage carries out loss balancing by low noise amplifier to radiofrequency signal, then after 5 GaAs MMIC chronotrons, exports.Adopt chronotron to carry out delay actual time to radiofrequency signal, reduce the aperture fill time of antenna, increased the momentary signal bandwidth of phased array antenna.
Fig. 2 is the cavity body structure figure of reentrant type microwave components, cavity layout is: the output port 7 of power combiner and four input ports 6 are positioned at the same side of dielectric-slab, output port 7 is positioned at center, and the both sides of output port 7 are respectively provided with the input port 6 of two-way receiving cable; The cavity being connected with output port 7 is public passage 5, and the cavity being connected with input port 6 is receiving cable.
Fig. 3 is the printed circuit board figure of reentrant type microwave components, layout is: four road receiving cable structural symmetry, and the circuit layout on the receiving cable of every road arranges as microwave chip limiter 8, low noise amplifier 9, numerical-control attenuator 10 and digital phase shifter 11 from input port 6 orders; Circuit layout on public passage 5 arranges as output port 13 and the power combiner 12 of chronotron 15, low noise amplifier 14, power combiner from output port 7 orders.
The first receiving cable 1, the second receiving cable 2, the 3rd receiving cable 3, the 4th receiving cable 4 Si road receiving cable principles are identical, structural symmetry.Taking receiving cable 1 as example, the aerial signal receiving is passed through successively microwave chip limiter 8, low noise amplifier 9, numerical-control attenuator 10, digital phase shifter 11, then ingoing power compositor 12 by prevention at radio-frequency port 6.In order to ensure the scanning accuracy of beam position, 6 digital phase shifters selecting phase shifting accuracy to be less than 3 °.Receiving cable, power combiner and public passage all adopt microstrip transmission line, and on micro-band dielectric-slab, fluting is placed microwave chip, and the input/output port of microwave chip adopts gold wire bonding Wiring technology with being connected of microstrip line.
Power combiner 12 substrates are selected the micro-band plate with radio-frequency channel same media, same thickness.Receiving cable output port, public passage input port and the smooth alignment of power combiner port, adopt gold wire bonding line to connect.Radiofrequency signal realizes reentrant type transmission by the output port 13 of power combiner, and the radiofrequency signal after synthesizing enters public passage 5, passes through successively low noise amplifier 14 and chronotron 15.Signal after time delay is exported at prevention at radio-frequency port 7, has realized the direction consistance of input port and output port.Radio-frequency joint adopts the SMP of plug-in, is convenient to dismounting and assembling.Each interchannel metallic walls intercepts interchannel electromagnetic scattering effectively, ensures interchannel high-isolation.Such structural design had both ensured the miniaturization of size of components, was also convenient to detachable maintaining and the update of microwave components in phased array antenna.
In use, user should be first according to the requirement of phased array antenna work in the present invention, the enlargement factor of appropriate design microwave components, phase shifting accuracy, chronotron figure place and physical dimension, the feasibility of guarantee practical application.
Claims (6)
1. the reentrant type microwave components based on truetimedelay technology, is characterized in that comprising four road receiving cables, power combiner, truetimedelay public passage and dielectric-slab; Cavity layout on dielectric-slab is: the output port (7) of power combiner and four input ports (6) are positioned at the same side of dielectric-slab, output port (7) is positioned at center, and the both sides of output port (7) are respectively provided with the input port (6) of two-way receiving cable; The cavity being connected with output port (7) is public passage (5), and the cavity being connected with input port (6) is receiving cable; The layout of the printed circuit board being provided with on dielectric-slab is: four road receiving cable structural symmetry, and the circuit layout on the receiving cable of every road arranges as microwave chip limiter (8), low noise amplifier (9), numerical-control attenuator (10) and digital phase shifter (11) from input port (6) order; Circuit layout on public passage (5) arranges as output port (13) and the power combiner (12) of chronotron (15), low noise amplifier (14), power combiner from output port 7 orders; Receiving cable output port, public passage input port and the smooth alignment of power combiner port; Receiving cable, power combiner and public passage all adopt microstrip transmission line, and on micro-band dielectric-slab, fluting is placed microwave chip, and the input/output port of microwave chip adopts gold wire bonding line to connect with being connected of microstrip line; The aerial signal receiving is passed through successively microwave chip limiter (8), low noise amplifier (9), numerical-control attenuator (10), digital phase shifter (11), then ingoing power compositor (12) by four prevention at radio-frequency port (6); Radiofrequency signal realizes reentrant type transmission by the output port (13) of power combiner, and the radiofrequency signal after synthesizing enters public passage (5), passes through successively low noise amplifier (14) and chronotron (15).Signal after time delay, in prevention at radio-frequency port (7) output, has been realized the direction consistance of input port and output port.
2. the reentrant type microwave components based on truetimedelay technology according to claim 1, is characterized in that: described dielectric-slab epicoele body wall is metallic walls, realizes radiofrequency signal in each port of power combiner and each interchannel isolation.
3. the reentrant type microwave components based on truetimedelay technology according to claim 1, is characterized in that: described power combiner (12) substrate is selected the micro-band plate with radio-frequency channel same media, same thickness.
4. the reentrant type microwave components based on truetimedelay technology according to claim 1, is characterized in that: 6 digital phase shifters that described digital phase shifter adopts phase shifting accuracy to be less than 3 °.
5. the reentrant type microwave components based on truetimedelay technology according to claim 1, is characterized in that: described input/output port adopts plug-in radio-frequency joint.
6. the reentrant type microwave components based on truetimedelay technology according to claim 1, is characterized in that: described radio-frequency joint adopts 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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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108768555A (en) * | 2018-08-21 | 2018-11-06 | 无锡华测电子系统有限公司 | Digital control type adjustable microwave delayer and its time-delay test method |
| CN109687898A (en) * | 2018-11-24 | 2019-04-26 | 天津大学 | Broadband beams synthesis chip based on active true time delay elements |
| CN109712937A (en) * | 2019-01-02 | 2019-05-03 | 北京振兴计量测试研究所 | A kind of eutectic carrier and microwave device |
| CN110661102A (en) * | 2019-09-29 | 2020-01-07 | 华南理工大学 | Phase shifting device and base station antenna |
| CN111029776A (en) * | 2015-06-01 | 2020-04-17 | 华为技术有限公司 | Combined phase shifter and multi-frequency antenna network system |
| CN112290219A (en) * | 2020-09-16 | 2021-01-29 | 北京无线电测量研究所 | Small-size multichannel moves subassembly |
| CN113156375A (en) * | 2021-03-30 | 2021-07-23 | 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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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029776A (en) * | 2015-06-01 | 2020-04-17 | 华为技术有限公司 | Combined phase shifter and multi-frequency antenna network system |
| CN111029776B (en) * | 2015-06-01 | 2021-04-09 | 华为技术有限公司 | Antenna |
| 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 |
| CN108768555A (en) * | 2018-08-21 | 2018-11-06 | 无锡华测电子系统有限公司 | Digital control type adjustable microwave delayer and its time-delay test method |
| CN108768555B (en) * | 2018-08-21 | 2023-04-28 | 无锡华测电子系统有限公司 | 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 |
| CN109712937A (en) * | 2019-01-02 | 2019-05-03 | 北京振兴计量测试研究所 | A kind of eutectic carrier and microwave device |
| CN110661102A (en) * | 2019-09-29 | 2020-01-07 | 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 |
| CN113156375A (en) * | 2021-03-30 | 2021-07-23 | 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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| CN104090268B (en) | 2016-08-24 |
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