CN203645631U - Radio frequency module smart protecting device - Google Patents
Radio frequency module smart protecting device Download PDFInfo
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- CN203645631U CN203645631U CN201420015548.9U CN201420015548U CN203645631U CN 203645631 U CN203645631 U CN 203645631U CN 201420015548 U CN201420015548 U CN 201420015548U CN 203645631 U CN203645631 U CN 203645631U
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Abstract
The utility model relates to a radio frequency module smart protecting device. An input power detector (IPD) is connected with a microprogrammed control unit (MCU). An over current detector (OCD) is connected with the MCU. The other end of the MCU is respectively connected with an automatic gain controller (AGC), a grid voltage controller (GVC), an output power detector (OPD), a standing-wave ratio detector BT and a temperature detector (TD). The other end of the GVC is connected with the OPD. The radio frequency module smart protecting device has the advantages that the radio frequency module smart protecting device is applicable to a mobile communication system and has functions such as input current detecting, input power detecting, output power detecting, standing-wave ratio detecting, temperature detecting and automatic gain adjusting, a repeater can be adjusted smartly, a microwave power amplifier can be well protected, and the service life of the microwave power amplifier can be increased effectively.
Description
Technical field
The utility model belongs to the communications field, is specifically related to the microwave power amplifier radio-frequency module intelligent protection device of repeater in mobile communication system.
Background technology
Along with the fast development of mobile communication, more and more higher to the requirement of the intelligent work in the repeater in mobile communication system.Radio-frequency module intelligent protection technology is ensure the repeater long-term stable operation in mobile communication system and improve the key technology of device intelligence work.
The one application that repeater belongs to moving communicating field relaying technique occupies very important effect in current wireless communication field, and its basic function is exactly a radio frequency signal amplifiers.Repeater can be divided into down link and up link in function, and down link is that repeater obtains descending input signal from communication base station, and input signal, after microwave power amplifier amplifies, is transmitted into overlay area, forms the process from base station to terminal; Up link is the signal that the communication equipment of overlay area is accepted user, after it is processed by microwave power amplifier, signal is forwarded to corresponding base station, forms the process from terminal to base station.Upper and lower link forms complete duplex communication loop to base station, repeater, terminal etc., ensures the reliability application of relaying technique at Covering domain.In upper and lower link, all need microwave power amplifier.Microwave power amplifier is requisite part in repeater, and Intelligent output technology is the key technology of microwave power amplifier.
Microwave power amplifier only amplifies input signal, and output signal can change along with the variation of input signal, and this just need to solve the problem of output power and output loading coupling well.In the unmatched situation of load, the signal of output can reflex on microwave power amplifier.Long-time reflection can make the microwave power amplifier life-span decline, and even may damage microwave power amplifier.As can be seen here, module intelligent protection technology has very important effect to microwave power amplifier.
What traditional microwave power amplifier radio-frequency module used is automated power output control technology; this technology can only be controlled power output size consistently; whether output loading is mated and can not be made corresponding judgement, more can not play the effect of adjustment and protection microwave power amplifier.
In view of this, these those skilled in the art are necessary to research and develop a kind of radio-frequency module intelligent protection technology for microwave power amplifier.
Summary of the invention
In order to overcome the shortcoming of above prior art; task of the present utility model is to provide the radio-frequency module intelligent protection device of microwave power amplifier in a kind of repeater; automated power output control technology that what it had solved that traditional microwave power amplifier module uses is and the problem that exists; this conventional art can only be controlled power output size consistently; whether output loading is mated and can not be made corresponding judgement, more can not play the effect of adjustment and protection microwave power amplifier.
Technical solution of the present utility model is as follows:
A kind of radio-frequency module intelligent protection device, it comprises Micro-processor MCV, and it also comprises input power detector IPD, over-current detector OCD, Temperature Detector TD, standing-wave ratio detector BT, output power detector OPD, automatic gain controller AGC and grid voltage controller GVC;
Described input power detector IPD connects Micro-processor MCV, over-current detector OCD connects Micro-processor MCV, the Micro-processor MCV other end meets respectively automatic gain controller AGC, grid voltage controller GVC, output power detector OPD, standing-wave ratio detector BT and Temperature Detector TD, another termination output power detector of grid voltage controller GVC OPD.
Described radio-frequency module intelligent protection device also comprises output overpower alarm indicator IPAL, and described output overpower alarm indicator IPAL meets input power detector IPD.
Described radio-frequency module intelligent protection device also comprises overcurrent alarm indicator OCAL, and described overcurrent alarm indicator OCAL takes over current sensor OCD.
Described radio-frequency module intelligent protection device also comprises excess temperature alarm indicator OTAL, described excess temperature alarm indicator OTAL jointing temp detector TD.
Described radio-frequency module intelligent protection device also comprises power output alarm indicator OPAL, and described power output alarm indicator OPAL meets output power detector OPD.
Described radio-frequency module intelligent protection device also comprises standing-wave ratio alarm indicator light BAL, and described standing-wave ratio alarm indicator light BAL meets standing-wave ratio detector BT.
Microwave power amplifier radio-frequency module intelligent protection device of the present utility model is for mobile communication system; can and protect microwave power amplifier to repeater adjustment; not only can play well the effect of adjustment and protection microwave power amplifier, and the useful life that can effectively improve microwave power amplifier.
Microwave power amplifier radio-frequency module intelligent protection device in the communications field of the present utility model has following functions:
1, input current measuring ability.
Input current detection technique is mainly to prevent that input voltage is because thereby the short circuit of fractional load causes the device in the excessive damage of electric current module.Design input current measuring ability at input, by the voltage at detection power resistance two ends, and the voltage detecting has been input in current detection circuit.If detect that blocks current is excessive, the power supply circuits of module are always in normally off, and show by overcurrent alarm indicator.After overcurrent alarm is removed, power supply circuits are opened, and alarm indicator is closed.
2, input power measuring ability.
It is to cause overdriving of radio-frequency (RF) tube and damage in order to prevent that input signal is excessive that input power detects.The input power of module is sent to input power testing circuit through coupler and detects the radiofrequency signal size of inputting.If the input radio frequency signal detecting is excessive, the grid voltage of power amplifier is always in normal closed condition, and shows by input overpower alarm indicator.After signal to be entered reduces, alarm is removed, and opens the supply power voltage of grid part, and closes alarm indicator.
3, power output measuring ability.
Thereby it is to make power tube long-term work under the state of excess load, damage power tube in order to prevent power output from exceeding the power consumption of power tube that power output detects.Module power output, after coupler, is sent to ouput power detection circuit by the radio frequency output signal being coupled out and detects the size of exporting radiofrequency signal.If the output radiofrequency signal detecting exceedes threshold value, the grid voltage that automatically reduces power amplifier makes it in semi-open state, and shows by output overpower alarm indicator.Treat that output signal is reduced to below threshold value, alarm is removed, and recovers the voltage of grid part, and closes alarm indicator.
4, standing-wave ratio measuring ability.
Standing-wave ratio measuring ability is excessive in order to prevent reflected signal.If reflected signal is excessive, can reduce the efficiency of power tube, increase the power consumption of power tube.And under the environment of higher standing-wave ratio, work for a long time, can damage power tube.The reflection power of module, through coupler, is sent to reflection power testing circuit detection of reflected watt level by the RF-reflective signal being coupled out.If the standing wave ratio of the reflection power detecting and power output exceedes after threshold value, the grid voltage that automatically reduces power amplifier makes it in semi-open state, and shows by standing-wave ratio alarm indicator light.Treat that reflection power is reduced to below threshold value, alarm is removed, and recovers the voltage of grid part, closes alarm indicator.
5, temperature detecting function.
Excess temperature alarm is in order to allow module be operated in better under normal temperature environment, in order to avoid damage because excess Temperature causes power tube.If the temperature detecting exceedes the threshold value of design temperature, control voltage by automatic gain control (AGC), reduce link gain so that power output reduces, reduce the voltage of grid simultaneously, in order to avoid power amplifier long-term work is under the environment of high temperature, acceleration power tube is aging, damages power tube, and shows by excess temperature alarm indicator.Treat that ambient temperature is reduced to below threshold value, by AGC control gate pole tension, recover normally to work, excess temperature alarm indicator extinguishes.
6, automatic gain control function.
Excessive in order to prevent the gain fluctuation of radio-frequency module, the variation that balance module gains under extreme environment, keeps original signal amplifying function, realizes the automatic adjusting of gain by AGC.While realizing Gain Automatic adjusting, the power of output necessarily can not be in starting to control state, otherwise there will be misoperation, makes gain-adjusted inaccurate.Make comparisons by detecting the size of power output and the size of input power, automatically adjust link gain by AGC, realize link gain and keep constant.
Brief description of the drawings
Fig. 1 is the connection of a kind of radio-frequency module intelligent protection device of the present utility model and moves towards schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
Referring to Fig. 1; the utility model provides the radio-frequency module intelligent protection device of microwave power amplifier in a kind of communications field, and it is mainly made up of Micro-processor MCV, input power detector IPD, over-current detector OCD, Temperature Detector TD, standing-wave ratio detector BT, output power detector OPD, automatic gain controller AGC and grid voltage controller GVC.
In circuit connects, input power detector IPD connects Micro-processor MCV, over-current detector OCD connects Micro-processor MCV, the Micro-processor MCV other end meets respectively automatic gain controller AGC, grid voltage controller GVC, output power detector OPD, standing-wave ratio detector BT and Temperature Detector TD, another termination output power detector of grid voltage controller GVC OPD.
Radio-frequency module intelligent protection device of the present utility model is also provided with several alarm indicators, mainly contains: output overpower alarm indicator IPAL, overcurrent alarm indicator OCAL, excess temperature alarm indicator OTAL, power output alarm indicator OPAL, standing-wave ratio alarm indicator light BAL.
Wherein: output overpower alarm indicator IPAL meets input power detector IPD, overcurrent alarm indicator OCAL takes over current sensor OCD, excess temperature alarm indicator OTAL jointing temp detector TD, power output alarm indicator OPAL meets output power detector OPD, and standing-wave ratio alarm indicator light BAL meets standing-wave ratio detector BT.
As shown in fig. 1, input power detector IPD meets respectively Micro-processor MCV and output overpower alarm indicator IPAL, over-current detector OCD meets respectively Micro-processor MCV and overcurrent alarm indicator OCAL, the Micro-processor MCV other end meets respectively automatic gain controller AGC, grid voltage controller GVC, output power detector OPD, standing-wave ratio detector BT and Temperature Detector TD, the Temperature Detector TD other end is taken over warm alarm indicator OTAL, another termination output power detector of grid voltage controller GVC OPD, another termination power output alarm indicator of output power detector OPD OPAL, another termination standing-wave ratio alarm indicator light of standing-wave ratio detector BT BAL.
Each device operation principle of microwave power amplifier radio-frequency module intelligent protection device of the present utility model is as follows:
Input power detector IPD delivers to the signal of detection after Micro-processor MCV is processed and delivers to automatic gain controller AGC, after processing, automatic gain controller AGC delivers to again Micro-processor MCV processing, deliver to input power detector IPD through Micro-processor MCV signal after treatment, the signal that input power detector IPD detects is delivered to output overpower alarm indicator IPAL.
Over-current detector OCD delivers to the signal of detection after Micro-processor MCV is processed and delivers to automatic gain controller AGC, after processing, automatic gain controller AGC delivers to again Micro-processor MCV processing, deliver to over-current detector OCD through Micro-processor MCV signal after treatment, signal is delivered to overcurrent alarm indicator OCAL by over-current detector OCD.
Temperature Detector TD delivers to the signal of detection after Micro-processor MCV is processed and delivers to automatic gain controller AGC, after processing, automatic gain controller AGC delivers to again Micro-processor MCV processing, deliver to Temperature Detector TD through Micro-processor MCV signal after treatment, the signal of detection is delivered to excess temperature alarm indicator OTAL by Temperature Detector TD.
Output power detector OPD delivers to the signal of detection after Micro-processor MCV is processed and delivers to automatic gain controller AGC, after processing, automatic gain controller AGC delivers to again Micro-processor MCV processing, deliver to grid voltage controller GVC through Micro-processor MCV signal after treatment, deliver to output power detector OPD through grid voltage controller GVC signal after treatment, the signal of detection is delivered to power output alarm indicator OPAL by output power detector OPD.
Standing-wave ratio detector BT delivers to the signal of detection after Micro-processor MCV is processed and delivers to automatic gain controller AGC, after processing, automatic gain controller AGC delivers to again Micro-processor MCV processing, deliver to standing-wave ratio detector BT through Micro-processor MCV signal after treatment, the signal of detection is delivered to standing-wave ratio alarm indicator light BAL by standing-wave ratio detector BT.
In sum; microwave power amplifier radio-frequency module intelligent protection device of the present utility model is for mobile communication system; there is the functions such as input current detection, input power detection, power output detection, standing-wave ratio detection, temperature detection, automatic gain control; can and protect microwave power amplifier to repeater adjustment; not only can play well the effect of adjustment and protection microwave power amplifier, and the useful life that can effectively improve microwave power amplifier.
Certainly, those skilled in the art in the art will be appreciated that, above-described embodiment is only for the utility model is described, and not with opposing restriction of the present utility model, as long as within the scope of connotation of the present utility model, variation, the modification etc. of above-described embodiment all will be dropped in the scope of the utility model claim.
Claims (6)
1. a radio-frequency module intelligent protection device, it comprises Micro-processor MCV, it is characterized in that: it also comprises input power detector IPD, over-current detector OCD, Temperature Detector TD, standing-wave ratio detector BT, output power detector OPD, automatic gain controller AGC and grid voltage controller GVC;
Described input power detector IPD connects Micro-processor MCV, over-current detector OCD connects Micro-processor MCV, the Micro-processor MCV other end meets respectively automatic gain controller AGC, grid voltage controller GVC, output power detector OPD, standing-wave ratio detector BT and Temperature Detector TD, another termination output power detector of grid voltage controller GVC OPD.
2. radio-frequency module intelligent protection device according to claim 1, is characterized in that: it also comprises output overpower alarm indicator IPAL, and described output overpower alarm indicator IPAL meets input power detector IPD.
3. radio-frequency module intelligent protection device according to claim 1, is characterized in that: it also comprises overcurrent alarm indicator OCAL, and described overcurrent alarm indicator OCAL takes over current sensor OCD.
4. radio-frequency module intelligent protection device according to claim 1, is characterized in that: it also comprises excess temperature alarm indicator OTAL, described excess temperature alarm indicator OTAL jointing temp detector TD.
5. radio-frequency module intelligent protection device according to claim 1, is characterized in that: it also comprises power output alarm indicator OPAL, and described power output alarm indicator OPAL meets output power detector OPD.
6. radio-frequency module intelligent protection device according to claim 1, is characterized in that: it also comprises standing-wave ratio alarm indicator light BAL, and described standing-wave ratio alarm indicator light BAL meets standing-wave ratio detector BT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015548.9U CN203645631U (en) | 2014-01-11 | 2014-01-11 | Radio frequency module smart protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015548.9U CN203645631U (en) | 2014-01-11 | 2014-01-11 | Radio frequency module smart protecting device |
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| CN203645631U true CN203645631U (en) | 2014-06-11 |
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| CN201420015548.9U Expired - Fee Related CN203645631U (en) | 2014-01-11 | 2014-01-11 | Radio frequency module smart protecting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301266A (en) * | 2014-10-27 | 2015-01-21 | 成都锐新科技有限公司 | Microwave radio frequency remote covering system |
| CN105423366A (en) * | 2015-12-29 | 2016-03-23 | 京信通信技术(广州)有限公司 | Microwave output power control device and method |
| CN105932973A (en) * | 2016-04-16 | 2016-09-07 | 合肥博雷电气有限公司 | Control protection circuit of solid state microwave power amplifier |
| CN109348310A (en) * | 2018-10-23 | 2019-02-15 | 京信通信***（中国）有限公司 | A kind of method and device of Remote Radio Unit overheat protector |
| CN110620594A (en) * | 2019-10-22 | 2019-12-27 | 西安九正科技有限公司 | Signal generator |
-
2014
- 2014-01-11 CN CN201420015548.9U patent/CN203645631U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301266A (en) * | 2014-10-27 | 2015-01-21 | 成都锐新科技有限公司 | Microwave radio frequency remote covering system |
| CN104301266B (en) * | 2014-10-27 | 2017-10-10 | 成都锐新科技有限公司 | A kind of microwave radio remote covering system |
| CN105423366A (en) * | 2015-12-29 | 2016-03-23 | 京信通信技术(广州)有限公司 | Microwave output power control device and method |
| CN105423366B (en) * | 2015-12-29 | 2018-01-09 | 京信通信技术(广州)有限公司 | Microwave output power control device and method |
| CN105932973A (en) * | 2016-04-16 | 2016-09-07 | 合肥博雷电气有限公司 | Control protection circuit of solid state microwave power amplifier |
| CN109348310A (en) * | 2018-10-23 | 2019-02-15 | 京信通信***（中国）有限公司 | A kind of method and device of Remote Radio Unit overheat protector |
| CN110620594A (en) * | 2019-10-22 | 2019-12-27 | 西安九正科技有限公司 | Signal generator |
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| 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: 20140611 Termination date: 20220111 |