CN104980180A - Microwave transceiver - Google Patents
Microwave transceiver Download PDFInfo
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- CN104980180A CN104980180A CN201510338530.1A CN201510338530A CN104980180A CN 104980180 A CN104980180 A CN 104980180A CN 201510338530 A CN201510338530 A CN 201510338530A CN 104980180 A CN104980180 A CN 104980180A
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- filter
- amplitude limiter
- receiver module
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Abstract
The invention relates to technical field of microwave communication, and provides a solution for the technical problem that the noise at the receiving end is too high in the prior art. The invention provides a microwave transceiver comprising a circulator, a receiving module, an antenna, a resistance load, a detection module, and a frequency dividing module. The circulator includes four ports, wherein the first port is a transmitting end, the second port opposite to the first port is connected with the receiving module, the third port is connected with the antenna, and the fourth port is connected with the resistance load. The receiving module includes an amplitude limiter, a low-noise amplifier, a filter, an image rejection mixer, a power divider, and a gain amplifier. The second port is sequentially connected with the amplitude limiter, the low-noise amplifier, the filter, the image rejection mixer, and the triple power divider. A first output end of the triple power divider is connected with the gain amplifier, a second output end is connected with the detection module, and a third output end is connected with the frequency dividing module. Therefore, the technical effect of effective noise reduction is achieved.
Description
Technical field
The present invention relates to technical field of micro communication, particularly relate to a kind of microwave transceiver.
Background technology
Microwave front-end transmitting-receiving subassembly is the critical component of the field such as satellite communication, radar communication high sensitive transceiving device, is mainly used in the process such as radio reception, amplification.
At existing receiving terminal, there is the higher technical problem of noise.
Summary of the invention
The present invention, by providing a kind of microwave transceiver, solves in prior art and has the higher technical problem of noise at receiving terminal, and then achieves the technique effect effectively reducing noise.
The technical scheme of the embodiment of the present invention is specially:
A kind of microwave transceiver, comprise: circulator, receiver module, antenna, ohmic load, detection module and frequency division module, circulator comprises four ports, and the first port is transmitting terminal, and second port relative with the first port is connected with receiver module, 3rd port is connected with antenna, and the 4th port is connected with ohmic load;
Receiver module comprises: amplitude limiter, low noise amplifier, filter, image-reject mixer, power splitter and gain amplifier;
Second port connects amplitude limiter successively, low noise amplifier, filter, image-reject mixer, and three power splitters, and the first output of three power splitters connects gain amplifier, and the second output connects detection module, three frequency division model calling frequency division module.
Further, amplitude limiter comprises limiter protection circuit, phase-shift circuit and filter circuit.
Further, receiver module also comprises: local oscillator, and local oscillator connects image-reject mixer.
The one or more technical schemes provided in the embodiment of the present invention, at least have following technique effect or advantage:
In the receiver module of this microwave transmitting and receiving end, amplitude limiter, low noise amplifier, filter is adopted owing to adopting.Image-reject mixer, effectively can carry out noise remove to the microwave signal received, not only microwave signal is received by circulator, and, by being transmitted by transmitting terminal, solve in prior art, at receiving terminal, there is the higher technical problem of noise, and then achieve the technique effect effectively reducing noise.
Accompanying drawing explanation
Fig. 1 is the module diagram of microwave transceiver in the embodiment of the present invention.
Embodiment
The present invention, by providing a kind of microwave transceiver, solves in prior art and has the higher technical problem of noise at receiving terminal, and then achieves the technique effect effectively reducing noise.
There is receiving terminal to solve in above-mentioned prior art there is the higher technical problem of noise, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
The embodiment of the present invention provides a kind of microwave transceiver, as shown in Figure 1, comprising: circulator 101, receiver module 102, antenna 103, ohmic load 104, detection module 105 and frequency division module 106, circulator 101 comprises four ports, first port 1011 is transmitting terminal, second port one 012 relative with the first port 1011 is connected with receiver module 102, and the 3rd port one 013 is connected with antenna 103, and the 4th port one 014 is connected with ohmic load 104.This receiver module 102 comprises: amplitude limiter 1021, low noise amplifier 1022, filter 1023 and image-reject mixer 1024, power splitter 1025 and gain amplifier 1026.This second port one 012 is the amplitude limiter 1021 connecting receiver module 102, then, connect low noise amplifier 1022 successively, filter 1023, image-reject mixer 1024, power splitter 1025, because the signal of this circulator 101 transmitting terminal is after amplitude limiter 1021 reflects, microwave signal can be absorbed timely by ohmic load 104, can not cause damage to subsequent conditioning circuit and circulator 101.
The power splitter 1025 of receiver module 102 adopts three power splitters, first output 1011 of this three power splitter connects gain amplifier 1026, second output 1012 connects detection module 105, detection module 105 is carried out detection to the signal exported and exports, 3rd output 1013 connects frequency division module 106, the signal of output is carried out scaling down processing by frequency division module 106, exports afterwards.
Limiter protection circuit is comprised at amplitude limiter 1021; phase-shift circuit and filter circuit; the microwave high power signal of limiter protection circuit to input carries out amplitude restriction, and the microwave signal of phase-shift circuit to input enters horizontal phasing control, and filter circuit carries out filtering to band stray signal.
In this receiver module 102, also comprise local oscillator 1027, this local oscillator 1027 connects image-reject mixer 1024.Owing to adopting this image-reject mixer 1024, when local oscillator 1027 changes, due to the inner phase place matching relationship of frequency mixer 1021, repressed image frequency scope also will change thereupon, make the effect playing mirror image suppression, harmonic wave is suppressed, thus effectively reduces noise.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (3)
1. a microwave transceiver, it is characterized in that, comprising: circulator, receiver module, antenna, ohmic load, detection module and frequency division module, circulator comprises four ports, first port is transmitting terminal, second port relative with the first port is connected with receiver module, and the 3rd port is connected with antenna, and the 4th port is connected with ohmic load;
Receiver module comprises: amplitude limiter, low noise amplifier, filter, image-reject mixer, power splitter and gain amplifier;
Second port connects amplitude limiter successively, low noise amplifier, filter, image-reject mixer, and three power splitters, and the first output of three power splitters connects gain amplifier, and the second output connects detection module, three frequency division model calling frequency division module.
2. microwave transceiver according to claim 1, is characterized in that, amplitude limiter comprises limiter protection circuit, phase-shift circuit and filter circuit.
3. microwave transceiver according to claim 1, is characterized in that, receiver module also comprises: local oscillator, and local oscillator connects image-reject mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338530.1A CN104980180A (en) | 2015-06-18 | 2015-06-18 | Microwave transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338530.1A CN104980180A (en) | 2015-06-18 | 2015-06-18 | Microwave transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104980180A true CN104980180A (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510338530.1A Pending CN104980180A (en) | 2015-06-18 | 2015-06-18 | Microwave transceiver |
Country Status (1)
| Country | Link |
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| CN (1) | CN104980180A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395229A (en) * | 2017-08-15 | 2017-11-24 | 东南大学 | The clamped beam receiver front end that internet of things oriented standing wave energy and excess energy are collected |
| CN107390184A (en) * | 2017-08-30 | 2017-11-24 | 北京无线电测量研究所 | A kind of signal correction system and method |
| CN107404329A (en) * | 2017-08-15 | 2017-11-28 | 东南大学 | The self-powered microwave receiver front end of internet of things oriented |
| CN107437936A (en) * | 2017-09-21 | 2017-12-05 | 天津光电通信技术有限公司 | The road duplexer circuit of ultrashort wave eight of adjustable isolation |
| CN107493108A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The cantilever beam microwave receiver front end that a kind of internet of things oriented excess energy is collected |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791421A (en) * | 1986-09-10 | 1988-12-13 | Westinghouse Electric Corp. | Transmit-receive module for phased-array antennas |
| US5408681A (en) * | 1993-08-16 | 1995-04-18 | The United States Of America As Represented By The Secretary Of The Navy | Automatic repeater station for signal transmissions |
| US20070264934A1 (en) * | 2006-05-10 | 2007-11-15 | Nortel Networks Limited | Stand-alone low noise amplifier |
| CN203691359U (en) * | 2013-12-12 | 2014-07-02 | 成都赛英科技有限公司 | C-band microwave large-power amplitude limiter circuit system |
| CN104104407A (en) * | 2014-05-26 | 2014-10-15 | 北京遥测技术研究所 | Multifunctional microwave transmit-receive front end |
-
2015
- 2015-06-18 CN CN201510338530.1A patent/CN104980180A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791421A (en) * | 1986-09-10 | 1988-12-13 | Westinghouse Electric Corp. | Transmit-receive module for phased-array antennas |
| US5408681A (en) * | 1993-08-16 | 1995-04-18 | The United States Of America As Represented By The Secretary Of The Navy | Automatic repeater station for signal transmissions |
| US20070264934A1 (en) * | 2006-05-10 | 2007-11-15 | Nortel Networks Limited | Stand-alone low noise amplifier |
| CN203691359U (en) * | 2013-12-12 | 2014-07-02 | 成都赛英科技有限公司 | C-band microwave large-power amplitude limiter circuit system |
| CN104104407A (en) * | 2014-05-26 | 2014-10-15 | 北京遥测技术研究所 | Multifunctional microwave transmit-receive front end |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395229A (en) * | 2017-08-15 | 2017-11-24 | 东南大学 | The clamped beam receiver front end that internet of things oriented standing wave energy and excess energy are collected |
| CN107404329A (en) * | 2017-08-15 | 2017-11-28 | 东南大学 | The self-powered microwave receiver front end of internet of things oriented |
| CN107493108A (en) * | 2017-08-15 | 2017-12-19 | 东南大学 | The cantilever beam microwave receiver front end that a kind of internet of things oriented excess energy is collected |
| CN107390184A (en) * | 2017-08-30 | 2017-11-24 | 北京无线电测量研究所 | A kind of signal correction system and method |
| CN107390184B (en) * | 2017-08-30 | 2019-11-08 | 北京无线电测量研究所 | A kind of signal correction system and method |
| CN107437936A (en) * | 2017-09-21 | 2017-12-05 | 天津光电通信技术有限公司 | The road duplexer circuit of ultrashort wave eight of adjustable isolation |
| CN107437936B (en) * | 2017-09-21 | 2023-09-01 | 天津光电通信技术有限公司 | Isolation-adjustable ultrashort wave eight-path diplexer circuit |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |