CN101051816A - Device and method for realizing wide band micro power linear power amplication - Google Patents
Device and method for realizing wide band micro power linear power amplication Download PDFInfo
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- CN101051816A CN101051816A CN 200610063203 CN200610063203A CN101051816A CN 101051816 A CN101051816 A CN 101051816A CN 200610063203 CN200610063203 CN 200610063203 CN 200610063203 A CN200610063203 A CN 200610063203A CN 101051816 A CN101051816 A CN 101051816A
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Abstract
The device of realizing broadband micro power amplification includes radio frequency power amplification module, as well as control and communication module (CCM). CCM includes microprocessor, forward power detector (FPD), backward power detector (BPD), and an automatic level control circuit constituted from FPD and BPD. FPD is in use for detecting sampled power signal output from the output amplifier. BPD is in use for detecting power signal output from the circulator. Based on results from the FPD and BPD, the microprocessor provides signal through one or more routes to the power drive in multiple stages in order to adjust bias of the disclosed device. Features are: wider power frequency bandwidth, and high linearity. The invention also discloses method for realizing broadband micro power amplification.
Description
Technical field
The present invention relates to realize the method and apparatus of power amplification, relate in particular to broadband micropower amplifier that is applied in the 3G (Third Generation) Moblie repeater and the method that realizes power amplification.
Background technology
Along with the continuous development of present mobile communication technology, Modern Mobile Communications Systems develops also that 3G (Third Generation) Moblie breath logical.Because its peak-to-average force ratio of 3-G (Generation Three mobile communication system) is far above second generation mobile communication system, therefore it is more and more higher to cause the linearity to radio-frequency power amplifier to require, and mostly is rollback method power amplifier greatly for satisfying the many relaying power amplification devices of linear needs.
In the debugging of general back-off power amplifier, be that the linearity of each grade is transferred to the best mostly, simultaneously compatible linearity and inband flatness, thus then systems at different levels cascade is obtained desirable index, can cause the efficient of work very low and operational frequency bandwidth system is narrower like this.
Summary of the invention
Adopt the rollback method to realize the low and narrower defective of system works frequency bandwidth of method and apparatus efficient of power amplification for overcoming prior art, be necessary to provide the realization side of the wide band micro power linear power amplication of device efficiency height and system works frequency bandwidth broad to send out and equipment.
For solving the problems of the technologies described above, a kind of device of realizing that the broadband micropower is amplified is provided, it comprises radio-frequency power amplifier unit and control and communication component, this radio-frequency power amplifier unit comprises a variable gain amplifier that connects in regular turn, one multistage analog line driver, one output amplifier and a circulator, this control and communication component comprise microprocessor, the forward power detector, the backward power detector, an and automatic level control circuit of forming thus, wherein, this forward power detector is used to detect the power signal by this output amplifier output that samples; This backward power detector is used to detect the power signal by this circulator output, this microprocessor is according to the testing result of this forward power detector and inverse detection device, provide one or more signal to this multistage analog line driver, to regulate the biasing of the device that this realization broadband micropower amplifies.
For solving the problems of the technologies described above, a kind of method that realizes that broadband power amplifies also is provided, it may further comprise the steps: the radio-frequency power amplifier unit is provided, and it comprises a variable gain amplifier, a multistage analog line driver, an output amplifier and a circulator that connects in regular turn; Sampling also detects the power output signal of this output amplifier; Sampling also detects the power output signal of this circulator; Produce and provide one or more conditioning signal according to the testing result of above-mentioned power signal, to regulate the biasing of this radio-frequency power amplifier unit power output to this multistage analog line driver.
Compare with prior art, the device and method that above-mentioned realization broadband micropower is amplified at output to the output level sample detecting and transform into control signal is finished monitoring and power and gain by microprocessor control.Adopt multistage complementary way of regulating, the component frequency response characteristic of sacrificing final stage power amplifier obtains the very high linearity and the bandwidth of operation of broad, change the frequency characteristic of each point by the adjustment of driving stage, reaching the purpose of the frequency response that improves whole system, thereby has higher operating efficiency.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the broadband micropower amplifying device that provides of embodiment of the present invention;
Fig. 2 is the circuit block diagram of the broadband micropower amplifying device of first embodiment of the invention;
Fig. 3 is the circuit block diagram of the broadband micropower amplifying device of second embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present invention is described in further details.
See also Fig. 1, a kind of overall structure schematic diagram that is applied to the broadband micropower amplifying device in the 3-G (Generation Three mobile communication system) repeater that provides for embodiment of the present invention.This broadband micropower amplifying device comprises two-way rf input port RFin1 and RFin2, one road radio frequency delivery outlet RFout, and interface such as power interface+9V and GND, communication interface 485A and 485B, ISP DLL (dynamic link library).
See also Fig. 2, be the circuit block diagram of the broadband micropower amplifying device of first embodiment of the invention.This broadband micropower amplifying device comprises radio-frequency power amplifier unit and control and communication component.This radio-frequency power amplifier unit comprises a coupler 110, a variable gain amplifier 111, a numerical-control attenuator 112, one multistage analog line driver 113, an isolator 114, an output amplifier 115 and a circulator 116 that connects in regular turn.This control and communication component comprise Temperature Detector 120, microprocessor 122, first directional coupler 124 and second directional coupler 125, forward power detector 123 and backward power detector 127, and an automatic level control circuit 121 of forming thus.In addition, this second directional coupler 125 links to each other with load 126.
Wherein, this first directional coupler 124 is arranged between this output amplifier 115 and this circulator 116, the power output signal that is used for directed sampling output amplifier 115, this forward power detector 123 links to each other with this first directional coupler 124, is used to detect the power signal that is sampled by this first directional coupler 124; This second directional coupler 125 is connected to this circulator 116, the power output signal that is used for directed this circulator 116 of sampling, this backward power detector 127 links to each other with this second directional coupler 125, be used to detect the power signal that samples by this second directional coupler 125, this microprocessor 122 is according to the testing result 127 of this forward power detector 123 and inverse detection device, provide one or more signal to this multistage analog line driver 113, to regulate the biasing of the device that this realization broadband micropower amplifies.
In the present embodiment, this coupler 110 can adopt the coupler of 3dB.It is 14dB that this variable gain amplifier 111 can adopt a gain, and attenuation range is the amplifier of 29dB, by it carry out that the radio frequency first order is amplified and and other circuit form and be used for automatic electric-level and control (ALC) circuit.This numerical-control attenuator 112 is used for radio frequency link is carried out gain controlling, by microprocessor, not gate and its collaborative realization.This multistage driver 113 is radio frequency amplifiers of 3 grades of amplifications.These output amplifier 115 receiving inputted signals also generate the amplifier of certain power output, are the radio frequency amplifiers of 4 grades of amplifications.
In the present embodiment, this microprocessor 122 is used to detect the multi-stage power amplifier that is coupled to, and detects the value of the Temperature Detector of input, and one or more control signal is provided, and is used for the biasing of regulatory work rate amplifier.This first directional coupler 124 and second directional coupler 125 are used for signal power level of directed sampling and are used for input.This forward power detector 123 and backward power detector 127 be according to the part input power signal that is coupled, and the signal after testing of expression detection signal is provided, and is used for detection power signal and the corresponding input of output detection power threshold voltage.This automatic level controller 121 is used to detect the variation of power output and generates a circuit unit with the gain of control radio circuit, and it is made up of forward power directional coupler, power detector, low pass filter, comparison circuit and voltage-controlled attenuator.This Temperature Detector 120 is used for the value that detected temperatures changes and export a sign temperature.
In addition, in the present embodiment, this broadband micropower amplifying device also further comprises by hardware temperatures compensating network 128 and software temperature-compensating carries out the temperature-compensation circuit that network 129 constitutes, the measurement of these microprocessor 122 these Temperature Detectors 120 is regulated this software temperature-compensating and is carried out the working temperature that network 129 comes this numerical-control attenuator 112 of Collaborative Control, and the working temperature of coming this multistage driver 113 of Collaborative Control and this output amplifier 115 via this hardware temperatures compensating network 128.
As mentioned above, in the present embodiment, this broadband micropower amplifying device adopts 4 grades of amplifying circuits, at output to the output level sample detecting and transform into control signal is finished monitoring and power and gain by microprocessor 122 control.Adopt multistage complementary way of regulating, the component frequency response characteristic of sacrificing final stage power amplifier obtains the very high linearity and the bandwidth of operation of broad, change the frequency characteristic of each point by the adjustment of driving stage, to reach the purpose of the frequency response that improves whole system.
In addition, owing to adopt temperature sensing circuit 120, can detect the ambient temperature of this broadband micropower amplifying device work.And and then provide hardware temperatures compensating network 128 and software temperature-compensating to carry out network 129 to come Collaborative Control numerical-control attenuator 112, multistage driver 113 and the operating state of output amplifier 115 under different temperatures change in gain problem that can semi-conductive temperature characterisitic produces so that this broadband micropower amplifying device can adapt to.In some embodiments, this broadband micropower is amplified the ambient temperature range that amplifying device can adapt to and is-25 ℃ to 55 ℃.
Broadband micropower amplifying device corresponding to first execution mode, the invention provides a kind of method that realizes that the broadband micropower is amplified, it may further comprise the steps: the radio-frequency power amplifier unit is provided, and it comprises a variable gain amplifier, a multistage analog line driver, an output amplifier and a circulator that connects in regular turn; Sampling also detects the power output signal of this output amplifier; Sampling also detects the power output signal of this circulator; Produce and provide one or more conditioning signal according to the testing result of above-mentioned power signal, to regulate the biasing of this radio-frequency power amplifier unit power output to this multistage analog line driver.
In addition, the method for above-mentioned realization broadband micropower amplification can also comprise the steps: to detect the ambient temperature of this radio-frequency power amplifier unit work; Result according to temperature detection provides temperature-compensating, to adapt to the change in gain problem that produces owing to semi-conductive temperature characterisitic.
Similar to above-mentioned broadband micropower amplifying device, the method that this realization broadband micropower is amplified at output to the output level sample detecting and transform into control signal is finished monitoring and power and gain by microprocessor control.Adopt multistage complementary way of regulating, the component frequency response characteristic of sacrificing final stage power amplifier obtains the very high linearity and the bandwidth of operation of broad, change the frequency characteristic of each point by the adjustment of driving stage, to reach the purpose of the frequency response that improves whole system.Simultaneously according to temperature detection result, under different temperatures, come regulatory work to be placed on frequency response under the different temperatures by the biasing of adjusting power tube.In addition, owing to adopt temperature detection and temperature-compensation circuit is provided, can be so that this broadband micropower amplifying device can adapt to the change in gain problem that produces owing to semi-conductive temperature characterisitic.
See also Fig. 3, be the circuit block diagram of the broadband micropower amplifying device of second embodiment of the invention.This broadband micropower amplifying device comprises radio-frequency power amplifier unit and control and communication component.This radio-frequency power amplifier unit comprises a coupler 210, a variable gain amplifier 211, a numerical-control attenuator 212, one multistage analog line driver 213, an isolator 214, an output amplifier 215 and a circulator 216 that connects in regular turn.This control and communication component comprise microprocessor 222, first directional coupler 224 and second directional coupler 225, forward power detector 223 and backward power detector 227, and an automatic level control circuit 221 of forming thus.In addition, this second directional coupler 225 links to each other with load 226.
Wherein, this first directional coupler 224 is arranged between this output amplifier 215 and this circulator 216, the power output signal that is used for directed sampling output amplifier 215, this forward power detector 223 links to each other with this first directional coupler 224, is used to detect the power signal that is sampled by this first directional coupler 224; This second directional coupler 225 is connected to this circulator 216, the power output signal that is used for directed this circulator 216 of sampling, this backward power detector 227 links to each other with this second directional coupler 225, be used to detect the power signal that samples by this second directional coupler 225, this microprocessor 222 is according to the testing result 227 of this forward power detector 223 and inverse detection device, provide one or more signal to this multistage analog line driver 213, to regulate the biasing of the device that this realization broadband micropower amplifies.
In the present embodiment, this coupler 210 can adopt the coupler of 3dB.It is 14dB that this variable gain amplifier 211 can adopt a gain, and attenuation range is the amplifier of 29dB, by it carry out that the radio frequency first order is amplified and and other circuit form and be used for automatic electric-level and control (ALC) circuit.This numerical-control attenuator 212 is used for radio frequency link is carried out gain controlling, by microprocessor, not gate and its collaborative realization.This multistage driver 213 is radio frequency amplifiers of 3 grades of amplifications.These output amplifier 215 receiving inputted signals also generate the amplifier of certain power output, are the radio frequency amplifiers of 4 grades of amplifications.
In the present embodiment, this microprocessor 222 is used to detect the multi-stage power amplifier that is coupled to, and detects the value of the Temperature Detector of input, and one or more control signal is provided, and is used for the biasing of regulatory work rate amplifier.This first directional coupler 224 and second directional coupler 225 are used for signal power level of directed sampling and are used for input.This forward power detector 223 and backward power detector 227 be according to the part input power signal that is coupled, and the signal after testing of expression detection signal is provided, and is used for detection power signal and the corresponding input of output detection power threshold voltage.This automatic level controller 221 is used to detect the variation of power output and generates a circuit unit with the gain of control radio circuit, and it is made up of forward power directional coupler, power detector, low pass filter, comparison circuit and voltage-controlled attenuator.
In addition, those skilled in the art also can do other variation in spirit of the present invention.The variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (9)
1. device of realizing that the broadband micropower is amplified, it comprises radio-frequency power amplifier unit and control and communication component, this radio-frequency power amplifier unit comprises a variable gain amplifier, a multistage analog line driver, an output amplifier and a circulator that connects in regular turn, this control and communication component comprise microprocessor, forward power detector, backward power detector, an and automatic level control circuit of forming thus, wherein, this forward power detector is used to detect the power signal by this output amplifier output that samples; This backward power detector is used to detect the power signal by this circulator output, this microprocessor is according to the testing result of this forward power detector and inverse detection device, provide one or more signal to this multistage analog line driver, to regulate the biasing of the device that this realization broadband micropower amplifies.
2. the device that realization as claimed in claim 1 broadband micropower is amplified, it is characterized in that, the device that this realization broadband micropower is amplified further comprises a temperature sensing circuit, is used for the testing environment variation of temperature, and testing result is transferred to this microprocessor.
3. the device that realization as claimed in claim 2 broadband micropower is amplified is characterized in that, the device that this realization broadband micropower is amplified further comprises temperature-compensation circuit, to adapt to the change in gain problem that produces owing to semi-conductive temperature characterisitic.
4. the device that realization broadband micropower as claimed in claim 3 is amplified is characterized in that, the temperature range that this device of realizing that the broadband micropower is amplified adapts to is-25 ℃ to 55 ℃.
5. the device that realization as claimed in claim 1 broadband micropower is amplified, it is characterized in that, the device that this realization broadband micropower is amplified further comprises first directional coupler, it is arranged between this output amplifier and this circulator, the power output signal that is used for directed sampling output amplifier, and give the forward power detector with the power signal transmissions that samples.
6. the device that realization as claimed in claim 1 broadband micropower is amplified, it is characterized in that, the device that this realization broadband micropower is amplified further comprises second directional coupler, it is connected to this circulator, the power output signal that is used for directed this circulator of sampling, and give the backward power detector with the power signal transmissions that samples.
7. method that realizes that broadband power amplifies, it may further comprise the steps:
The radio-frequency power amplifier unit is provided, and it comprises a variable gain amplifier, a multistage analog line driver, an output amplifier and a circulator that connects in regular turn;
Sampling also detects the power output signal of this output amplifier;
Sampling also detects the power output signal of this circulator;
Produce and provide one or more conditioning signal according to the testing result of above-mentioned power signal, to regulate the biasing of this radio-frequency power amplifier unit power output to this multistage analog line driver.
8. the method that realization broadband power as claimed in claim 7 amplifies is characterized in that this method further comprises the steps: to detect the ambient temperature of this radio-frequency power amplifier unit work.
9. the method that realization broadband power as claimed in claim 8 amplifies is characterized in that this method further comprises the steps: the result according to temperature detection, and temperature-compensating is provided, to adapt to the change in gain problem that produces owing to semi-conductive temperature characterisitic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610063203A CN100588112C (en) | 2006-10-18 | 2006-10-18 | Device and method for realizing wide band micro power linear power amplication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610063203A CN100588112C (en) | 2006-10-18 | 2006-10-18 | Device and method for realizing wide band micro power linear power amplication |
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| CN101051816A true CN101051816A (en) | 2007-10-10 |
| CN100588112C CN100588112C (en) | 2010-02-03 |
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| CN200610063203A Expired - Fee Related CN100588112C (en) | 2006-10-18 | 2006-10-18 | Device and method for realizing wide band micro power linear power amplication |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136826A (en) * | 2010-12-09 | 2011-07-27 | 东莞理工学院 | ACL control and temperature compensation method and device |
| CN102355203A (en) * | 2011-10-09 | 2012-02-15 | 上海东洲罗顿通信技术有限公司 | Intelligent output technology of microwave power amplifier |
| CN102749954A (en) * | 2012-06-27 | 2012-10-24 | 中国电子科技集团公司第四十一研究所 | Method for improving signal source port power performance based on multi-dimensional analog digital mixing feedback compensation |
| CN103401517A (en) * | 2013-08-15 | 2013-11-20 | 杭州威力克通信系统有限公司 | Radio frequency power amplifier system |
| CN105974994A (en) * | 2016-04-28 | 2016-09-28 | 广东美的厨房电器制造有限公司 | Circuit and method for power output of microwave oven |
| CN106533609A (en) * | 2016-12-15 | 2017-03-22 | 深圳市飞思腾科技有限公司 | Digital signal interferometer |
| CN106569020A (en) * | 2016-10-20 | 2017-04-19 | 成都前锋电子仪器有限责任公司 | Power sensor for radio frequency power reflectometer |
| CN106921839A (en) * | 2017-04-18 | 2017-07-04 | 深圳国人通信股份有限公司 | A kind of high-power amplifying device and its amplification method |
| CN107809276A (en) * | 2017-10-10 | 2018-03-16 | 中国电子科技集团公司第五十四研究所 | Minimize inexpensive satellite data transmission equipment |
| CN107863940A (en) * | 2017-11-21 | 2018-03-30 | 西安空间无线电技术研究所 | A kind of Larger Dynamic scope ALC protection circuits with temperature compensation function |
| CN110176907A (en) * | 2019-06-26 | 2019-08-27 | 深圳市博威射频科技有限公司 | RF power amplification protects circuit and its control method |
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2006
- 2006-10-18 CN CN200610063203A patent/CN100588112C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136826A (en) * | 2010-12-09 | 2011-07-27 | 东莞理工学院 | ACL control and temperature compensation method and device |
| CN102136826B (en) * | 2010-12-09 | 2013-02-27 | 东莞理工学院 | ACL control and temperature compensation method and device |
| CN102355203A (en) * | 2011-10-09 | 2012-02-15 | 上海东洲罗顿通信技术有限公司 | Intelligent output technology of microwave power amplifier |
| CN102355203B (en) * | 2011-10-09 | 2013-10-16 | 上海东洲罗顿通信股份有限公司 | Intelligent output technology of microwave power amplifier |
| CN102749954A (en) * | 2012-06-27 | 2012-10-24 | 中国电子科技集团公司第四十一研究所 | Method for improving signal source port power performance based on multi-dimensional analog digital mixing feedback compensation |
| CN102749954B (en) * | 2012-06-27 | 2016-05-04 | 中国电子科技集团公司第四十一研究所 | A kind of method based on multidimensional digital-to-analogue hybrid feedback compensation raising signal source port power-performance |
| CN103401517A (en) * | 2013-08-15 | 2013-11-20 | 杭州威力克通信系统有限公司 | Radio frequency power amplifier system |
| CN103401517B (en) * | 2013-08-15 | 2016-08-31 | 杭州威力克通信系统有限公司 | Radio frequency power amplifier system |
| CN105974994A (en) * | 2016-04-28 | 2016-09-28 | 广东美的厨房电器制造有限公司 | Circuit and method for power output of microwave oven |
| CN105974994B (en) * | 2016-04-28 | 2018-09-11 | 广东美的厨房电器制造有限公司 | A kind of power output circuit and method of micro-wave oven |
| CN106569020A (en) * | 2016-10-20 | 2017-04-19 | 成都前锋电子仪器有限责任公司 | Power sensor for radio frequency power reflectometer |
| CN106533609A (en) * | 2016-12-15 | 2017-03-22 | 深圳市飞思腾科技有限公司 | Digital signal interferometer |
| CN106921839A (en) * | 2017-04-18 | 2017-07-04 | 深圳国人通信股份有限公司 | A kind of high-power amplifying device and its amplification method |
| CN107809276A (en) * | 2017-10-10 | 2018-03-16 | 中国电子科技集团公司第五十四研究所 | Minimize inexpensive satellite data transmission equipment |
| CN107809276B (en) * | 2017-10-10 | 2020-02-07 | 中国电子科技集团公司第五十四研究所 | Miniaturized satellite data transmission equipment |
| CN107863940A (en) * | 2017-11-21 | 2018-03-30 | 西安空间无线电技术研究所 | A kind of Larger Dynamic scope ALC protection circuits with temperature compensation function |
| CN110176907A (en) * | 2019-06-26 | 2019-08-27 | 深圳市博威射频科技有限公司 | RF power amplification protects circuit and its control method |
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| CN100588112C (en) | 2010-02-03 |
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