CN101902205B - Signal transmit-receive switching radio frequency amplifier for wireless communication system - Google Patents
Signal transmit-receive switching radio frequency amplifier for wireless communication system Download PDFInfo
- Publication number
- CN101902205B CN101902205B CN200910052318.3A CN200910052318A CN101902205B CN 101902205 B CN101902205 B CN 101902205B CN 200910052318 A CN200910052318 A CN 200910052318A CN 101902205 B CN101902205 B CN 101902205B
- Authority
- CN
- China
- Prior art keywords
- module
- radio
- frequency switch
- logic control
- switch module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Amplifiers (AREA)
- Transmitters (AREA)
Abstract
The invention relates to a signal transmit-receive switching radio frequency amplifier for a wireless communication system. The amplifier is characterized by comprising a signal transmitting module F, a signal receiving module R, a logic control module A, a logic control module B, a radio frequency switch module K1, a radio frequency switch module K2, an RFin port, an RFout port, a circulator I and a power supply source, wherein the input end of the signal transmission module F is connected with the RFin port and the output end of the signal receiving module R through the radio frequency switch module K2; the output end of the signal transmitting module R is connected with the RFout port and the radio frequency switch module K2 through the circulator I; the input end of the signal receiving module R is connected with the radio frequency switch module K1; and the logic control module A and the logic control module B are connected with the radio frequency switch module K1 and the radio frequency switch module K2. Compared with the prior art, the signal transmit-receive switching radio frequency amplifier has common-frequency transmission and receiving, ns-grade switching speed and high-power reflection protection.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of signal transmit-receive switching radio frequency amplifier for wireless communication system.
Background technology
Flourish along with modern digital mobile communication technology, user is more and more higher to the performance requirement of Wireless Telecom Equipment, and the transfer of data stable, at a high speed realizing in various environment is one of main target of future mobile communication system researcher.Radio-frequency power amplifier is the final stage of transmitter, and it is amplified to needed power by modulated band signal, guarantees that the receiver in overlay area can be received satisfied signal level, and this just requires the power of output to want enough large.Keep as best one can again the undistorted distortion of high-power signal after amplifying simultaneously.Particularly, in tdma communication system, such as TD-SCDMA communication system, also have MiWAVE broadband wireless emergency communication system, and public security digital communication and national defence monitoring etc. aspect.Power emission and reception are to switch the time-division, and the speed of switching is very fast, and this just requires to bear high power switch speed very soon and the radio-frequency (RF) switch of filter with low insertion loss, and current high-speed radio-frequency switch maximum can only be accomplished 10W.Power is difficult to do greatly in this case, is being greater than in the power output situation of 10W.In actual applications often due to zero load or antenna standing wave bad, power reflection is often burnt communication equipment, makes communication system paralysis and wants sizable maintenance cost.Particularly, in MiWAVE broadband wireless emergency communication system, environment for use is very severe complicated, and equipment just more easily damages.
Existing coaxial radio-frequency mechanical switch power can be greater than 10W, but switching speed is ms level, and switch speed does not reach requirement, and volume is large, is not easy to install, expensive.IC chip class switching speed is fast, and volume is little, but it is very little to bear power, dispels the heat bad, easily bad.
Summary of the invention
Technical problem to be solved by this invention is exactly to provide a kind of signal transmit-receive switching radio frequency amplifier for wireless communication system in order to overcome the defect of above-mentioned prior art existence.
Object of the present invention can be achieved through the following technical solutions: a kind of signal transmit-receive switching radio frequency amplifier for wireless communication system, it is characterized in that, comprise signal emission module F, signal receiving module R, Logic control module A, Logic control module B, radio-frequency switch module K1, radio-frequency switch module K2, RFin port, RFout port, circulator I and power supply, the input of described signal emission module F is connected with the output of RFin port and signal receiving module R through radio-frequency switch module K2, the output of described signal emission module R is connected with RFout port and radio-frequency switch module K2 through circulator I, the input of described signal receiving module R is connected with radio-frequency switch module K1, described Logic control module A, Logic control module B is all connected with radio-frequency switch module K1 and radio-frequency switch module K2.
When described Logic control module A output high level, Logic control module B output low level, described radio-frequency switch module K1 and radio-frequency switch module K2 make RFout port be connected with the input of signal receiving module R, when described Logic control module A output low level, Logic control module B output high level, described radio-frequency switch module K1 and radio-frequency switch module K2 make RFin port be connected with the input of signal emission module F.
Described Logic control module A and Logic control module B all export the low level of high level or the 0V of 8V.
The voltage of described power supply is more than or equal to 27V.
Compared with prior art, the present invention is simple in structure, Insertion Loss is low, cost is low, and has ns level switch speed, high power protection (30W).
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of signal transmit-receive switching radio frequency amplifier for wireless communication system, comprise signal emission module F, signal receiving module R, Logic control module A, Logic control module B, radio-frequency switch module K1, radio-frequency switch module K2, RFin port, RFout port, circulator I and power supply, the input of described signal emission module F is connected with the output of RFin port and signal receiving module R through radio-frequency switch module K2, the output of described signal emission module R is connected with RFout port and radio-frequency switch module K2 through circulator I, the input of described signal receiving module R is connected with radio-frequency switch module K1, described Logic control module A, Logic control module B is all connected with radio-frequency switch module K1 and radio-frequency switch module K2.
When described Logic control module A output high level, Logic control module B output low level, described radio-frequency switch module K1 and radio-frequency switch module K2 make RFout port be connected with the input of signal receiving module R, when described Logic control module A output low level, Logic control module B output high level, described radio-frequency switch module K1 and radio-frequency switch module K2 make RFin port be connected with the input of signal emission module F; Described Logic control module A and Logic control module B all export the low level of high level or the 0V of 8V; The voltage of described power supply is more than or equal to 27V.
Signal transmit-receive switching radio frequency amplifier is a kind of IC chip of paster encapsulation and the assembling device of resolution element.There are RFin, RFout and power supply interface in interface section.Logic control module A, Logic control module B are contained in inside.In the engineering of work, perfect heat-dissipating, switching time is short, high power reflection protection, the radiating portion linearity is good, and receiving branch noise is low.Under the control action of Logic control module A, module B, select output RFout or RFin, in actual applications, by selecting RFout or RFin, realize communication.
Operation principle: the feeder ear of signal transmit-receive switching radio frequency amplifier must have Vd=27V or voltage more than 27V, exemplary currents 2 peaces, logic control A and B control level are 8V (high) or 0V (low), electric current is 10 milliamperes.
When A high B low, the input of signal receiving module is connected with RFout; When A low B high, the input of signal emission module is connected with RFin.The port one maximal input of K1 is 45dbm, stablize-40-85 degree of operational environment; Operating frequency range: DC-3G; Switching time: between 15-40ns;
Signal transmit-receive switching radio frequency amplifier of the present invention can be widely used in high-frequency wireless communication field.As mobile communication equipment repeater, the equipment such as base station, transmitting receiving terminal of MiWAVE broadband wireless emergency communication system etc.
Claims (3)
1. the signal transmit-receive switching radio frequency amplifier for wireless communication system, it is characterized in that, comprise signal emission module F, signal receiving module R, Logic control module A, Logic control module B, radio-frequency switch module K1, radio-frequency switch module K2, RFin port, RFout port, circulator I and power supply, the input of described signal emission module F is connected with the output of RFin port and signal receiving module R through radio-frequency switch module K2, the output of described signal emission module F is connected with RFout port and radio-frequency switch module K1 respectively through circulator I, the input of described signal receiving module R is connected with radio-frequency switch module K1, described Logic control module A, Logic control module B is all connected with radio-frequency switch module K1 and radio-frequency switch module K2,
Described power supply is connected between Logic control module B and radio-frequency switch module K1;
When described Logic control module A output high level, Logic control module B output low level, described radio-frequency switch module K1 and radio-frequency switch module K2 make RFout port be connected with the input of signal receiving module R, when described Logic control module A output low level, Logic control module B output high level, described radio-frequency switch module K1 and radio-frequency switch module K2 make RFin port be connected with the input of signal emission module F.
2. a kind of signal transmit-receive switching radio frequency amplifier for wireless communication system according to claim 1, is characterized in that, described Logic control module A and Logic control module B all export the low level of high level or the 0V of 8V.
3. a kind of signal transmit-receive switching radio frequency amplifier for wireless communication system according to claim 2, is characterized in that, the voltage of described power supply is more than or equal to 27V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910052318.3A CN101902205B (en) | 2009-06-01 | 2009-06-01 | Signal transmit-receive switching radio frequency amplifier for wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910052318.3A CN101902205B (en) | 2009-06-01 | 2009-06-01 | Signal transmit-receive switching radio frequency amplifier for wireless communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101902205A CN101902205A (en) | 2010-12-01 |
| CN101902205B true CN101902205B (en) | 2014-04-02 |
Family
ID=43227464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910052318.3A Active CN101902205B (en) | 2009-06-01 | 2009-06-01 | Signal transmit-receive switching radio frequency amplifier for wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101902205B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237312A (en) * | 1997-06-27 | 1999-12-01 | 皇家菲利浦电子有限公司 | Power supply switching in radio communication device |
| CN1463502A (en) * | 2001-05-25 | 2003-12-24 | 皇家菲利浦电子有限公司 | Transmit/receive switch for RF transceiver |
| CN1578172A (en) * | 2003-07-30 | 2005-02-09 | 奇美通讯股份有限公司 | RF transceiver module formed in multi-layered ceramic |
-
2009
- 2009-06-01 CN CN200910052318.3A patent/CN101902205B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237312A (en) * | 1997-06-27 | 1999-12-01 | 皇家菲利浦电子有限公司 | Power supply switching in radio communication device |
| CN1463502A (en) * | 2001-05-25 | 2003-12-24 | 皇家菲利浦电子有限公司 | Transmit/receive switch for RF transceiver |
| CN1578172A (en) * | 2003-07-30 | 2005-02-09 | 奇美通讯股份有限公司 | RF transceiver module formed in multi-layered ceramic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101902205A (en) | 2010-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101282127B (en) | Transmit-receive switching mechanism for TDD radio communication system | |
| CN102457458B (en) | The implementation method of a kind of base station digital pre-distortion and device | |
| US7639990B2 (en) | Wireless communications device | |
| CN104426486A (en) | Bias-boosting bias circuit for radio frequency power amplifier | |
| CN105099414A (en) | Rf transformer based tx/rx integrated rf switch | |
| CN103368601B (en) | Wireless communication transceiver front end | |
| US9209769B2 (en) | Power amplifier and communication device | |
| TW201429157A (en) | Radio frequency switch circuit | |
| CN109375176B (en) | Transmitter power amplifier module | |
| CN102833884A (en) | Dual-mode mobile communication terminal | |
| CN101908881B (en) | Directional coupler and radio-frequency power amplifier containing same | |
| CN102769212A (en) | Medium-frequency simulated RoF (radio over fiber) type phase control active integrated antenna | |
| CN205232164U (en) | Broadband high -gain flatness power amplifier | |
| CN101902205B (en) | Signal transmit-receive switching radio frequency amplifier for wireless communication system | |
| CN203104423U (en) | Multi-band antenna circuit and mobile terminal | |
| KR100957837B1 (en) | Antenna separately radio system using Time Division Duplex | |
| CN108649974B (en) | A kind of power amplifier and radio frequency sending set | |
| CN203288755U (en) | RoF-type phase control active integrated antenna array suitable for FDD system | |
| CN201518470U (en) | LED wave band broad-band power amplifier | |
| CN102714516A (en) | Wireless communication node | |
| CN112671377B (en) | Time delay device | |
| CN216290845U (en) | L-band 10W power amplifier | |
| CN203554386U (en) | Power switching circuit of radio frequency power amplifier | |
| WO2023216785A1 (en) | Radio frequency front-end module, control method therefor, control circuit, and communication device | |
| CN113472299B (en) | Signal receiving and transmitting front-end circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |