CN105187091A - Microwave signal transmitting and receiving device - Google Patents
Microwave signal transmitting and receiving device Download PDFInfo
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- CN105187091A CN105187091A CN201510337981.3A CN201510337981A CN105187091A CN 105187091 A CN105187091 A CN 105187091A CN 201510337981 A CN201510337981 A CN 201510337981A CN 105187091 A CN105187091 A CN 105187091A
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- microwave signal
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- coaxial trigger
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- 230000003750 conditioning effect Effects 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 241000931705 Cicada Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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Abstract
The invention relates to the technical field of microwave communication, and provides a solution to the technical problem in the prior art that there are interference signals in signals received by a communication device. A microwave signal transmitting and receiving device is provided, comprising an external filter, a coaxial change-over switch, a power amplifier connected with one end of the coaxial change-over switch, and a low-noise amplifier connected with the other end of the coaxial change-over switch. The coaxial change-over switch comprises a transmitting end, a receiving end, and an antenna. The external filter is connected with the coaxial change-over switch. The microwave signal transmitting and receiving device further comprises a dual-channel transmitting and receiving switch. When the antenna is coupled to the transmitting end, the coaxial change-over switch is communicated with the power amplifier, and a power-amplified microwave signal is output through an uplink channel of the dual-channel transmitting and receiving switch; and when the antenna is coupled to the receiving end, the coaxial change-over switch is communicated with the low-noise amplifier, and a de-noised and amplified microwave signal is output through a downlink channel of the dual-channel transmitting and receiving switch. Therefore, the technical effect of anti-interference performance improving is achieved.
Description
Technical field
The present invention relates to technical field of micro communication, particularly relate to a kind of microwave signal R-T unit.
Background technology
Radio communication is widely used in the various fields comprising transmission of sound signals, video signal transmission and transfer of data, in various radio communication technology field, radio receiver is for receiving by the radio wave of wireless intercepting and capturing, and be spendable form the convert information that radio wave carries, pass through demodulating process, wireless receiver converts information to voice signal, vision signal, data, or other available signals, the device comprising radio receiver comprises, such as, cell phone, radio network device, blue-tooth device.
For industry, science, medical treatment and other purposes, various radio-frequency unit transmits and receives the radiofrequency signal in various radio bands, and it is labeled as industry jointly, science and medical treatment (ISM) radio bands.Generally, ISM radio bands is preserved for civil use in the world, in recent years, these ISM frequency bands become welcome in short distance, low power loss communication system, such as 2.4GHz frequency band is by cordless telephone, blue-tooth device, near-field communication (NFC) device, ZigBee device, radio controlled toy, and the communication of radio network device used.Because ISM frequency band has many different purposes, electromagnetic interference can be produced in the discharge of the device of ISM frequency band operation, and in the radio communication of identical or contiguous other devices of frequency interferences, therefore, need to stand the interference produced at other devices that are identical or adjacent frequency band work at the communicator of ISM band operation.
Therefore, there is the technical problem that communicator exists interference signal in prior art.
Summary of the invention
The present invention, by providing a kind of microwave signal R-T unit, solves the technical problem that communicator in prior art exists interference signal, and then achieves the technique effect improving anti-interference.
The technical scheme of the embodiment of the present invention is specially:
A kind of microwave signal R-T unit, comprise: external filter, coaxial trigger, connect the power amplifier of coaxial trigger one end and the low noise amplifier being connected the coaxial trigger other end, coaxial trigger comprises transmitting terminal, receiving terminal and antenna port, and external filter connects coaxial trigger, also comprise, binary channels transmit-receive switch;
When antenna-coupled is to transmitting terminal, coaxial trigger switches to and is communicated with power amplifier, is exported by the data feedback channel of the microwave signal of power amplification by binary channels transmit-receive switch;
When antenna-coupled is to receiving terminal, coaxial trigger switches to and is communicated with low noise amplifier, exports the microwave signal that denoising is amplified to subsequent conditioning circuit by the down going channel of two channel switch.
Further, subsequent conditioning circuit comprises: the amplitude limiter connected successively, band pass filter, frequency mixer.
Further, subsequent conditioning circuit also comprises local oscillation circuit, and the output of local oscillation circuit connects the input of frequency mixer.
The one or more technical schemes provided in the embodiment of the present invention, at least have following technique effect or advantage:
Owing to adopting, external filter is set in microwave signal R-T unit, coaxial trigger, and power amplifier on coaxial switch two switching ports and low noise amplifier, this coaxial trigger also comprises transmitting terminal, receiving terminal and antenna port, binary channels transmit-receive switch is connected with after power amplifier and low noise amplifier, at antenna-coupled to transmitting terminal, coaxial trigger switches to and is communicated with power amplifier, the data feedback channel of the microwave signal of power amplification by binary channels transmit-receive switch is exported, when antenna-coupled is to receiving terminal, coaxial trigger switches to and is communicated with low noise amplifier, the microwave signal that denoising amplifies is exported to subsequent conditioning circuit by the down going channel of two channel switch, solve communicator in prior art and there is the technical problem of interference signal when Received signal strength, and then achieve the technique effect improving anti-interference.
Accompanying drawing explanation
Fig. 1 is the module diagram of microwave signal R-T unit in the embodiment of the present invention.
Embodiment
The present invention, by providing a kind of microwave signal R-T unit, solves in prior art and there is communicator exists interference signal technical problem when Received signal strength, and then achieves the technique effect improving anti-interference.
There is to solve in above-mentioned prior art the technical problem that communicator exists interference signal when Received signal strength, below in conjunction with Figure of description and concrete execution mode, technique scheme being described in detail.
The embodiment of the present invention provides a kind of microwave signal R-T unit, as shown in Figure 1, comprise: external filter 101, coaxial trigger 102, connect the power amplifier 103 of coaxial trigger 102 one end and the low noise amplifier 104 being connected the coaxial trigger other end, coaxial trigger also comprises: transmitting terminal 1021, receiving terminal 1022 and antenna 1023, external filter 101 connects coaxial trigger 102, and this microwave signal R-T unit also comprises: binary channels transmit-receive switch 105.
In a particular embodiment, external filter 101 adopts duplexer, can be separated the signal of two different frequency ranges that antenna 1023 receives, when receiving terminal 1022 is coupled to for antenna 1023, the signal be separated arrives low noise amplifier 104, this low noise amplifier 104 amplifies isolated signal, then exports subsequent conditioning circuit to by the down going channel of two channel switch.
When antenna 1023 is coupled to transmitting terminal 1021, the signal be separated arrives power amplifier 103, after amplifying, then is exported by the data feedback channel of two channel switch.
The amplitude limiter connected successively is adopted, band pass filter and frequency mixer, simultaneously in subsequent conditioning circuit, frequency mixer also connects local oscillation circuit, the output of local oscillation circuit connects the input of frequency mixer, interference signal effectively to the received signal can carry out filtering, improves anti-interference.
Effectively can overcome signal disturbing by above-mentioned mode, thus improve anti-interference.
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 signal R-T unit, it is characterized in that, comprise: external filter, coaxial trigger, connect the power amplifier of coaxial trigger one end and the low noise amplifier being connected the coaxial trigger other end, coaxial trigger comprises transmitting terminal, receiving terminal and antenna, external filter connects coaxial trigger, also comprises, binary channels transmit-receive switch;
When antenna-coupled is to transmitting terminal, coaxial trigger switches to and is communicated with power amplifier, is exported by the data feedback channel of the microwave signal of power amplification by binary channels transmit-receive switch;
When antenna-coupled is to receiving terminal, coaxial trigger switches to and is communicated with low noise amplifier, exports the microwave signal that denoising is amplified to subsequent conditioning circuit by the down going channel of two channel switch.
2. microwave signal R-T unit according to claim 1, subsequent conditioning circuit comprises: the amplitude limiter connected successively, band pass filter, frequency mixer.
3. microwave signal R-T unit according to claim 1, subsequent conditioning circuit also comprises local oscillation circuit, and the output of local oscillation circuit connects the input of frequency mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510337981.3A CN105187091A (en) | 2015-06-18 | 2015-06-18 | Microwave signal transmitting and receiving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510337981.3A CN105187091A (en) | 2015-06-18 | 2015-06-18 | Microwave signal transmitting and receiving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105187091A true CN105187091A (en) | 2015-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510337981.3A Pending CN105187091A (en) | 2015-06-18 | 2015-06-18 | Microwave signal transmitting and receiving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105187091A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5900781A (en) * | 1996-03-29 | 1999-05-04 | Alps Electric Co., Ltd. | Multistage variable gain amplifier circuit |
| CN101064522A (en) * | 2006-04-24 | 2007-10-31 | 中兴通讯股份有限公司 | Multifunctional transceiver for time division duplexing system |
| CN101155158A (en) * | 2006-09-25 | 2008-04-02 | 大唐移动通信设备有限公司 | Baseband predistortion device and method |
| CN101425816A (en) * | 2008-09-26 | 2009-05-06 | 中国科学院微电子研究所 | Transceiver for wireless ultra-wideband and method for sending and receiving signals thereof |
-
2015
- 2015-06-18 CN CN201510337981.3A patent/CN105187091A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5900781A (en) * | 1996-03-29 | 1999-05-04 | Alps Electric Co., Ltd. | Multistage variable gain amplifier circuit |
| CN101064522A (en) * | 2006-04-24 | 2007-10-31 | 中兴通讯股份有限公司 | Multifunctional transceiver for time division duplexing system |
| CN101155158A (en) * | 2006-09-25 | 2008-04-02 | 大唐移动通信设备有限公司 | Baseband predistortion device and method |
| CN101425816A (en) * | 2008-09-26 | 2009-05-06 | 中国科学院微电子研究所 | Transceiver for wireless ultra-wideband and method for sending and receiving signals thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |
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| RJ01 | Rejection of invention patent application after publication |