CN203054215U - 35 GHz measuring radar millimeter-wave assembly - Google Patents
35 GHz measuring radar millimeter-wave assembly Download PDFInfo
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- CN203054215U CN203054215U CN 201220745351 CN201220745351U CN203054215U CN 203054215 U CN203054215 U CN 203054215U CN 201220745351 CN201220745351 CN 201220745351 CN 201220745351 U CN201220745351 U CN 201220745351U CN 203054215 U CN203054215 U CN 203054215U
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- millimeter wave
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- amplifier
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Abstract
A 35 GHz measuring radar millimeter-wave assembly comprises a shielding box. A circuit and a waveguide cavity are arranged in the shielding box. Microwave circuits and millimeter wave circuits are mounted in the circuit and the waveguide cavity and outside of the shielding box. Structures of the microwave circuits and the millimeter wave circuits are that a first filter, a first mixer, a second filter, an amplifier, a second mixer, a third filter, a first millimeter wave amplifier, a first isolator, a circulator, a second millimeter wave amplifier, a second isolator, a diode mixer, an intermediate frequency amplifier and a low pass filter are successively connected with each other; he structure comprises a 100 MHz reference crystal oscillator, a 2.1 GHz frequency synthesizer and a 33.6 GHz frequency synthesizer; input terminals of the two frequency synthesizer are connected with an output terminal of the 100 MHz reference crystal oscillator; an output terminal of the 2.1 GHz frequency synthesizer is connected with a local-oscillator signal input terminal of the first mixer; an output terminal of the 33.6 GHz frequency synthesizer is connected with a local-oscillator signal input terminal of the second mixer, and the circulator is connected with an antenna.
Description
Technical field
The utility model belongs to the millimetre-wave attenuator technical field, and what be specifically related to is 35GHz instrumentation radar millimeter wave assembly.
Background technology
The millimeter wave detection radar system is transformed into intermediate-freuqncy signal mainly by the millimeter wave frequency changer circuit with millimeter-wave signal, and it is the important component part of millimeter-wave systems.The millimeter wave detection radar system generally requires the millimeter wave receiving unit to have higher gain and than low-noise factor; Radiating portion has good emissive power etc.Present domestic millimeter wave detection radar millimeter wave assembly has various application scenarios.
Summary of the invention
The purpose of this utility model is the deficiency at existing product, provides a kind of technical indicator better Ka wave band 35GHz instrumentation radar millimeter wave assembly, its compact conformation, and debugging can be satisfied the requirement of millimeter wave detection radar system effectively easily.
A kind of 35GHz instrumentation radar millimeter wave assembly comprises shielding box, and shielding box inside is provided with circuit and waveguide cavity; Be provided with microwave circuit and millimetre-wave circuit in circuit and waveguide cavity and outside the shielding box;
The structure that microwave circuit and millimetre-wave circuit are arranged of this 35GHz instrumentation radar millimeter wave assembly is, successively first wave filter of Lian Jieing, first frequency mixer, second wave filter, amplifier, second frequency mixer, the 3rd wave filter, first millimeter wave amplifier, first isolator, circulator, second millimeter wave amplifier, second isolator, diode mixer, intermediate frequency amplifier and low-pass filter; The input end of described first wave filter connects the intermediate frequency input port, and the output terminal of low-pass filter connects the medium frequency output end mouth; Also comprise 100MHz with reference to crystal oscillator, 2.1GHz frequency synthesizer and 33.6GHz frequency synthesizer, the input end of two frequency synthesizers connects 100MHz with reference to the output terminal of crystal oscillator; 2.1GHz the output terminal of frequency synthesizer connects the local oscillation signal input end of first frequency mixer; 33.6GHz the output terminal of frequency synthesizer connects the local oscillation signal input end of second frequency mixer; Be connected with antenna on the described circulator;
Circuit outside shielding box has: intermediate frequency amplifies preceding road, diode mixer, second isolator, second millimeter wave amplifier, circulator, antenna and 33.6GHz frequency synthesizer.
Described 100MHz also directly externally exports one tunnel reference signal with reference to crystal oscillator.
Described first and second millimeter wave amplifying circuit is the bare chip based on GaAs material, the millimeter wave amplifying circuit of formation.
The output terminal of described first and second millimeter wave filter specifically is to be welded on little being with metal probe to the form of the conversion employing probe of waveguide mouth, and teflon is adopted in the support around the probe.
Principle of the present utility model is that reference signal is produced by crystal oscillator, passes through frequency multiplication--filtering--and directly exports external system after the amplification to.Intermediate frequency frequency changer circuit (first wave filter, first frequency mixer, second wave filter and amplifier component part) is with the filtering behind the L-band of IF signal frequency conversion, and produce Ka wave band millimeter wave signal behind X-band process (33.6GHz combines frequently) frequency tripling of frequency source generation, the mixing again in second frequency mixer of both and millimetre-wave circuit, through entering the first millimeter wave amplifying circuit behind second wave filter (millimeter wave filter), after export through antenna.
Antenna enters second millimeter wave amplifier (millimeter wave low noise amplifier) after receiving signal, the signal of coming with transmit leakage passes through isolator and the mixing of diode mixer (single-ended mixer) phase, produce intermediate-freuqncy signal, export the external digital signal disposal system to through filtering with after amplifying processing.
Principal feature of the present utility model is that whole modular construction is compact, integrated design, and technical indicator is good, and internal circuit disturbs little, has solved other related systems and has received the big problem of noise, and this also is sharpest edges of the present utility model.
Description of drawings
Fig. 1 is assembly one-piece construction sketch of the present utility model among the embodiment;
Fig. 2 is theory diagram of the present utility model among the embodiment;
Reference signal output terminal 1, shielding box 2, intermediate frequency input port 3, medium frequency output end mouth 4, intermediate frequency amplifier circuit 5, the second millimeter wave amplifying circuit 6, antenna 7,33.6GHz frequency synthesizer 8.
Embodiment
Below in conjunction with accompanying drawing and embodiment the technical program is described as follows:
A kind of 35GHz instrumentation radar millimeter wave assembly comprises shielding box, and shielding box inside is provided with circuit and waveguide cavity; Be provided with microwave circuit and millimetre-wave circuit in circuit and waveguide cavity and outside the shielding box; The structure that microwave circuit and millimetre-wave circuit are arranged of this 35GHz instrumentation radar millimeter wave assembly is, successively first wave filter of Lian Jieing, first frequency mixer, second wave filter, amplifier, second frequency mixer, the 3rd wave filter, first millimeter wave amplifier, first isolator, circulator, second millimeter wave amplifier, second isolator, diode mixer, intermediate frequency amplifier and low-pass filter; The input end of described first wave filter connects the intermediate frequency input port, and the output terminal of low-pass filter connects the medium frequency output end mouth; Also comprise 100MHz with reference to crystal oscillator, 2.1GHz frequency synthesizer and 33.6GHz frequency synthesizer, the input end of two frequency synthesizers connects 100MHz with reference to the output terminal of crystal oscillator; 2.1GHz the output terminal of frequency synthesizer connects the local oscillation signal input end of first frequency mixer; 33.6GHz the output terminal of frequency synthesizer connects the local oscillation signal input end of second frequency mixer; Be connected with antenna on the described circulator; Circuit outside shielding box has: intermediate frequency amplifies preceding road, diode mixer, second isolator, second millimeter wave amplifier, circulator, antenna and 33.6GHz frequency synthesizer.
Described first and second millimeter wave amplifying circuit is the bare chip based on GaAs material, the millimeter wave amplifying circuit of formation.The output terminal of described first and second millimeter wave filter specifically is to be welded on little being with metal probe to the form of the conversion employing probe of waveguide mouth, and teflon is adopted in the support around the probe.
Principal feature of the present utility model is that whole modular construction is compact, integrated design, and technical indicator is good, and internal circuit disturbs little, has solved other related systems and has received the big problem of noise, and this also is sharpest edges of the present utility model.
35GHz instrumentation radar millimeter wave assembly, its inner integrated a lot of microwave and millimeter wave circuit, integrated level is very high.Reasonable in design between each module, internal signal disturbs little, and the processing signals ability is strong.
Reasonable in design between each module of 35GHz instrumentation radar millimeter wave assembly, adopt new circuit to overcome the weak point of traditional circuit, solve the design difficulty of this series products at present.
Be the 35GHz instrumentation radar millimeter wave component technology index that is designed by demand below:
(1), working temperature :-40 ℃～+ 55 ℃
(2), storing temperature :-55 ℃～+ 70 ℃
(3), emission output: 34-36GHz
(4), emissive power: 〉=17dBm
(5), intermediate frequency input: L-band
(6), intermediate frequency output: 1-10MHz
(7), receiving gain: 〉=35dB
(8), noise figure :≤7dB
(9), spuious inhibition :≤-45dBc.
Claims (3)
1. a 35GHz instrumentation radar millimeter wave assembly is characterized in that comprising shielding box, and shielding box inside is provided with circuit and waveguide cavity; Be provided with microwave circuit and millimetre-wave circuit in circuit and waveguide cavity and outside the shielding box;
The structure that microwave circuit and millimetre-wave circuit are arranged of this 35GHz instrumentation radar millimeter wave assembly is, successively first wave filter of Lian Jieing, first frequency mixer, second wave filter, amplifier, second frequency mixer, the 3rd wave filter, first millimeter wave amplifier, first isolator, circulator, second millimeter wave amplifier, second isolator, diode mixer, intermediate frequency amplifier and low-pass filter; The input end of described first wave filter connects the intermediate frequency input port, and the output terminal of low-pass filter connects the medium frequency output end mouth; Also comprise 100MHz with reference to crystal oscillator, 2.1GHz frequency synthesizer and 33.6GHz frequency synthesizer, the input end of two frequency synthesizers connects 100MHz with reference to the output terminal of crystal oscillator; 2.1GHz the output terminal of frequency synthesizer connects the local oscillation signal input end of first frequency mixer; 33.6GHz the output terminal of frequency synthesizer connects the local oscillation signal input end of second frequency mixer; Be connected with antenna on the described circulator;
Circuit outside shielding box has: intermediate frequency amplifies preceding road, diode mixer, second isolator, second millimeter wave amplifier, circulator, antenna and 33.6GHz frequency synthesizer.
2. 35GHz instrumentation radar millimeter wave assembly according to claim 1 is characterized in that described first and second millimeter wave amplifying circuit is the bare chip based on GaAs material, the millimeter wave amplifying circuit of formation.
3. 35GHz instrumentation radar millimeter wave assembly according to claim 1 and 2, it is characterized in that the output terminal of first and second millimeter wave filter is to the form of the conversion employing probe of waveguide mouth, specifically be to be welded on little being with metal probe, teflon is adopted in the support around the probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745351 CN203054215U (en) | 2012-12-31 | 2012-12-31 | 35 GHz measuring radar millimeter-wave assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745351 CN203054215U (en) | 2012-12-31 | 2012-12-31 | 35 GHz measuring radar millimeter-wave assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203054215U true CN203054215U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745351 Expired - Lifetime CN203054215U (en) | 2012-12-31 | 2012-12-31 | 35 GHz measuring radar millimeter-wave assembly |
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| CN (1) | CN203054215U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823218A (en) * | 2014-01-15 | 2014-05-28 | 中船重工鹏力（南京）大气海洋信息系统有限公司 | Ka wave band radar wave measuring apparatus |
| CN104166124A (en) * | 2014-06-20 | 2014-11-26 | 杭州电子科技大学 | Multi-frequency band millimeter wave anticollision radar receiver |
| CN105591664A (en) * | 2014-11-13 | 2016-05-18 | 航天恒星科技有限公司 | Radio frequency sending method, radio frequency receiving method and radio frequency terminal |
| CN109274370A (en) * | 2018-09-29 | 2019-01-25 | 北京望远四象科技有限公司 | Sweep Source and UAV system for millimetre-wave radar |
| CN110350276A (en) * | 2019-07-08 | 2019-10-18 | 成都英商电子科技有限公司 | Transmitting-receiving filters the component that goes in ring |
| WO2020001268A1 (en) * | 2018-06-29 | 2020-01-02 | 中兴通讯股份有限公司 | Millimeter wave transceiver |
| CN111130472A (en) * | 2019-12-31 | 2020-05-08 | 西安茂德通讯科技有限公司 | Radar microwave assembly |
-
2012
- 2012-12-31 CN CN 201220745351 patent/CN203054215U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823218A (en) * | 2014-01-15 | 2014-05-28 | 中船重工鹏力（南京）大气海洋信息系统有限公司 | Ka wave band radar wave measuring apparatus |
| CN104166124A (en) * | 2014-06-20 | 2014-11-26 | 杭州电子科技大学 | Multi-frequency band millimeter wave anticollision radar receiver |
| CN104166124B (en) * | 2014-06-20 | 2017-01-04 | 杭州电子科技大学 | A kind of multiband borne Millimeter Wave Collision Avoidance Radars receiver |
| CN105591664A (en) * | 2014-11-13 | 2016-05-18 | 航天恒星科技有限公司 | Radio frequency sending method, radio frequency receiving method and radio frequency terminal |
| WO2020001268A1 (en) * | 2018-06-29 | 2020-01-02 | 中兴通讯股份有限公司 | Millimeter wave transceiver |
| CN109274370A (en) * | 2018-09-29 | 2019-01-25 | 北京望远四象科技有限公司 | Sweep Source and UAV system for millimetre-wave radar |
| CN109274370B (en) * | 2018-09-29 | 2022-06-24 | 北京望远四象科技有限公司 | Sweep frequency source for millimeter wave radar and unmanned aerial vehicle system |
| CN110350276A (en) * | 2019-07-08 | 2019-10-18 | 成都英商电子科技有限公司 | Transmitting-receiving filters the component that goes in ring |
| CN111130472A (en) * | 2019-12-31 | 2020-05-08 | 西安茂德通讯科技有限公司 | Radar microwave assembly |
| CN111130472B (en) * | 2019-12-31 | 2023-08-04 | 西安茂德通讯科技有限公司 | Radar microwave assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
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| CX01 | Expiry of patent term |