CN204392230U - The integrated receiving unit of a kind of 8mm - Google Patents
The integrated receiving unit of a kind of 8mm Download PDFInfo
- Publication number
- CN204392230U CN204392230U CN201520125944.1U CN201520125944U CN204392230U CN 204392230 U CN204392230 U CN 204392230U CN 201520125944 U CN201520125944 U CN 201520125944U CN 204392230 U CN204392230 U CN 204392230U
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- frequency
- frequency mixer
- band
- signal
- receiving unit
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Abstract
The utility model relates to millimeter wave receiving unit technical field, specifically the integrated receiving unit of a kind of 8mm is disclosed, comprise 8mm frequency mixer, described 8mm frequency mixer one end input 8mm signal in band, this 8mm signal in band is successively by being delivered to 8mm frequency mixer after micro-band waveguide transitions and the process of 8mm LNA; Described 8mm frequency mixer one end connects × 4 frequency multipliers, and described × 4 frequency multipliers are connected with 8.75GHz source signal, and the other end of described 8mm frequency mixer is exported by intermediate frequency after stagger amplifier processing signals.The utility model advantage is that it adopts monolithic integrated circuit, mixing type receiving front-end, has miniaturization, microminiaturization, raising reliability, debugs the features such as easy.Utilize miniaturized local oscillator technology, X-band Integrated VCO, in conjunction with 8mm frequency doubling technology, achieve the highly integrated of millimeter wave receiving front-end, make structure simpler.Low noise amplifier can improve the sensitivity of system, increases operating distance.Divide the use of chamber technology, effectively solve the problem of self-excitation.
Description
Technical field
The utility model relates to millimeter wave receiving unit technical field, refers to the integrated receiving unit of a kind of 8mm especially.
Background technology
Millimeter wave receiving unit is the important component part of millimeter-wave systems, is also focus and the difficult point of current millimetre-wave circuit and system research.Along with the develop rapidly of electronic information technology, the integrated level of receiving front-end circuit improves constantly, and function also becomes increasingly abundant and complexity simultaneously.8mm receiving front-end technology is the key technology of communication satellite of new generation, and Ye Shi China needs one of key technology broken through, significant to the research and development of China's Novel Communication satellite.There is the features such as frequency is high, information capacity large, strong interference immunity, this technology of the many employings of Novel Communication satellite of current China due to 8mm receiving front-end.
Based on the millimeter wave receiving unit of assembling parts Technology design, complex structure, can not realize miniaturization, light-weighted requirement.Therefore requiring more highly integrated to millimeter wave receiving unit, can not adapt in the development process of more small size.And local oscillator adopts gunn bulk technology, and reliability is not high, brings inconvenience to debugging.
Utility model content
The purpose of this utility model is to provide the integrated receiving unit of a kind of 8mm, which solves the problems referred to above, effectively solves self-excitation problem.Achieve the integrated of 8mm receiving unit, and ensure that the miniaturization of system, light weight, high reliability and debugging are easy.
To achieve these goals, the utility model have employed following technical scheme: the integrated receiving unit of a kind of 8mm, comprise 8mm frequency mixer, described 8mm frequency mixer one end input 8mm signal in band, this 8mm signal in band is successively by being delivered to 8mm frequency mixer after micro-band waveguide transitions and the process of 8mm LNA; Described 8mm frequency mixer one end connects × 4 frequency multipliers, and described × 4 frequency multipliers are connected with 8.75GHz source signal, and the other end of described 8mm frequency mixer is exported by intermediate frequency after stagger amplifier processing signals.
Further, the cavity of described 8mm frequency mixer adopts a point cavity configuration, and cavity is made up of front cover, chamber, front end, rear cover, waveguide cover, threading, stud.
The beneficial effects of the utility model are: after adopting above-mentioned receiving unit, it adopts monolithic integrated circuit, mixing type receiving front-end, have miniaturization, microminiaturization, raising reliability, debug the features such as easy.Utilize miniaturized local oscillator technology, X-band Integrated VCO, in conjunction with 8mm frequency doubling technology, achieve the highly integrated of millimeter wave receiving front-end, make structure simpler.Low noise amplifier can improve the sensitivity of system, increases operating distance.Divide the use of chamber technology, effectively solve the problem of self-excitation.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment technical scheme, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only that the utility model is in order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below the accompanying drawing used required in p-embodiment or description of the prior art is briefly described, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is theory diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The integrated receiving unit of a kind of 8mm as shown in Figure 1, comprises 8mm frequency mixer, described 8mm frequency mixer one end input 8mm signal in band, and this 8mm signal in band is successively by being delivered to 8mm frequency mixer after micro-band waveguide transitions and the process of 8mm LNA; Described 8mm frequency mixer one end connects × 4 frequency multipliers, and described × 4 frequency multipliers are connected with 8.75GHz source signal, and the other end of described 8mm frequency mixer is exported by intermediate frequency after stagger amplifier processing signals.
Wherein, the cavity of described 8mm frequency mixer adopts a point cavity configuration, and cavity is made up of front cover, chamber, front end, rear cover, waveguide cover, threading, stud.Effectively solve the problem of self-excitation.
Above-mentioned receiving unit adopts monolithic integrated circuit, mixing type receiving front-end, first 8.75GHz source is produced by X-band Integrated VCO, 35GHz millimeter wave local oscillation signal is produced through quadrupler, the mm wave RF signal received by antenna enters 8mm receiving front-end by standard waveguide mouth, after micro-band waveguide transitions, amplified by 8mm low noise amplifier again, enter 8mm frequency mixer and 35GHz millimeter wave local oscillation signal carries out mixing, produce microwave intermediate-freuqncy signal, amplify eventually through stagger amplifier, export intermediate-freuqncy signal.Power supply adopts+12V single power supply, and the inner negative voltage that adopts produces and voltage stabilizing circuit.Its schematic diagram as shown in Figure 1.
8.75GHz source signal utilizes X-band Integrated VCO to produce.Voltage controlled oscillator hmc506lp4 is adopted to produce 8.75GHz source signal according to designing requirement.
The signal source of 8.75GHz is produced 35GHz millimeter wave local oscillation signal by quadrupler.Here frequency multiplier CHX2092 is selected to change as quadruple.
8mm radiofrequency signal is inputted by standard waveguide mouth, enters receiving front-end by micro-band waveguide transitions.Various ways changed by standard rectangular waveguide and microstrip line, and conventional has waveguide-ridge waveguide-microstrip transition, waveguide-microstrip probe transition and waveguide-probe-microstrip transition.Microstrip probe transition is current most widely used transition form, and it has obvious advantage: insertion loss is little, return loss is high, have larger frequency range, compact conformation, easy to process, remove stage makeup and costume easily etc.Therefore, the transition form of waveguide-microstrip probe transition is selected.
Signal after micro-band waveguide transitions is amplified by 8mm low noise amplifier again.Amplifying the occasion of small-signal, the noise of amplifier self may be very serious to the interference of signal, therefore wishes to reduce this noise, to improve output signal-to-noise ratio.The selection of low noise amplifier needs careful consideration, and here low noise amplifier selects AMMC6241 to realize.
8mm frequency mixer and the mixing of 35GHz millimeter wave local oscillation signal is entered by the signal after 8mm low noise amplifier amplifies.The indexs such as dynamic range, local frequency, insertion loss and local oscillator radio frequency isolation degree mainly considered by frequency mixer.Comprehensive indices, selects double balanced mixer hmc329 comparatively suitable, and it is less that it has mixing combination component, and half fewer than single balance mixer combination harmonic composition, had both reduced humorous wave interference and also improved harmonic energy loss; Isolation is good, can reduce the local-oscillator leakage on signal path; Dynamic range is large, also can be operated in linear condition when radio-frequency (RF) input power is larger.
The microwave intermediate-freuqncy signal produced is amplified by stagger amplifier, exports intermediate-freuqncy signal.The advantages such as stagger amplifier selects MGA-81563, and it is little that it has package dimension, and noise is low, easy to use.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (2)
1. the integrated receiving unit of 8mm, is characterized in that, comprises 8mm frequency mixer, described 8mm frequency mixer one end input 8mm signal in band, and this 8mm signal in band is successively by being delivered to 8mm frequency mixer after micro-band waveguide transitions and the process of 8mm LNA; Described 8mm frequency mixer one end connects × 4 frequency multipliers, and described × 4 frequency multipliers are connected with 8.75GHz source signal, and the other end of described 8mm frequency mixer is exported by intermediate frequency after stagger amplifier processing signals.
2. the integrated receiving unit of a kind of 8mm according to claim 1, is characterized in that: the cavity of described 8mm frequency mixer adopts a point cavity configuration, and cavity is made up of front cover, chamber, front end, rear cover, waveguide cover, threading, stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520125944.1U CN204392230U (en) | 2015-03-04 | 2015-03-04 | The integrated receiving unit of a kind of 8mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520125944.1U CN204392230U (en) | 2015-03-04 | 2015-03-04 | The integrated receiving unit of a kind of 8mm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392230U true CN204392230U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520125944.1U Expired - Fee Related CN204392230U (en) | 2015-03-04 | 2015-03-04 | The integrated receiving unit of a kind of 8mm |
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| CN (1) | CN204392230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787562A (en) * | 2019-01-10 | 2019-05-21 | 青岛海洋科学与技术国家实验室发展中心 | Ultra wide band millimeter wave frequency-variable module and component |
| CN112198372A (en) * | 2020-08-13 | 2021-01-08 | 中国科学院国家天文台 | Intermediate frequency circuit system for large-scale submillimeter wave detector reading system |
-
2015
- 2015-03-04 CN CN201520125944.1U patent/CN204392230U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787562A (en) * | 2019-01-10 | 2019-05-21 | 青岛海洋科学与技术国家实验室发展中心 | Ultra wide band millimeter wave frequency-variable module and component |
| CN112198372A (en) * | 2020-08-13 | 2021-01-08 | 中国科学院国家天文台 | Intermediate frequency circuit system for large-scale submillimeter wave detector reading system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20160304 |