CN105811898A - Balanced type high-gain and high-power radio frequency power amplifier - Google Patents
Balanced type high-gain and high-power radio frequency power amplifier Download PDFInfo
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- CN105811898A CN105811898A CN201610248105.8A CN201610248105A CN105811898A CN 105811898 A CN105811898 A CN 105811898A CN 201610248105 A CN201610248105 A CN 201610248105A CN 105811898 A CN105811898 A CN 105811898A
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- power amplifier
- orthocoupler
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- 230000010363 phase shift Effects 0.000 claims abstract description 22
- 238000002955 isolation Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000005283 ground state Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a balanced type high-gain and high-power radio frequency power amplifier which comprises orthocouplers, 3dB power dividers, 45-degree phase-shift networks, matching networks and power amplifiers which are in balanced and symmetrical connection. A signal source is connected with the input end of the front orthocoupler. The two output ends of the front orthocoupler are connected with the input ends of two front 3dB power dividers respectively. One output end of each front 3dB power divider is sequentially connected with one 45-degree phase-shift network, one matching network, one amplifier, one matching network and one input end of one rear 3dB power divider, and the other output end of each front 3dB power divider is sequentially connected with one matching network, one power amplifier, one matching network, one 45-degree phase-shift network and the other input end of the corresponding rear 3dB power divider. The output ends of the two rear 3dB power dividers are each connected with one input end of the rear orthocoupler. According to the balanced type high-gain and high-power radio frequency power amplifier, the power output capacity of the radio frequency power amplifier is improved, the gain of the whole radio frequency power amplifier is improved, and the heat dissipation problem is solved.
Description
Technical field
The present invention relates to a kind of power amplifier, particularly relate to a kind of radio-frequency power amplifier.
Background technology
Radio-frequency power amplifier is the indispensable ingredient of wireless communication system, mainly radiofrequency signal only small for power is amplified without distortions, and is gone out by aerial radiation.
Along with constantly reducing of modern semiconductors size, especially for cmos device, the voltage swing born is also more and more less, causes output ability degradation.
In Chinese patent 201510150849.1, by adopting the radio-frequency power amplifier structure of cascode structure to carry out the voltage endurance capability of hoisting power level, but the grid of the second of cascode structure transistor is ground state because of decoupling capacitor when exchange.Along with the increase of input signal power, the voltage signal of output is also with becoming big, thus the uppermost transistor of this structure can be made to occur breakdown problem at first.Further, since the output impedance of two transistors in cascode structure is not optimum impedance, so output is less.In Chinese patent 201510150849.1, radio-frequency power amplifier adopts cascode structure, and this structure can improve the voltage endurance capability of radio-frequency power amplifier.But, this structure is owing to being stacked on the effect of the decoupling capacitor of the grid of the transistor above lowermost transistor, the grid of transistor be ground state when exchange, uppermost transistor in this structure therefore can be caused to occur at first puncturing and the transistor in the most beneath face occurs the situation of entrance linear zone at first；It addition, this structure can not ensure that the output impedance of each transistor is optimum impedance well, therefore, this structure output power relative drop.
Summary of the invention
In Chinese patent 201510150849.1, radio-frequency power amplifier adopts cascode structure, and this structure can improve the voltage endurance capability of radio-frequency power amplifier.But, this structure is owing to being stacked on the effect of the decoupling capacitor of the grid of the transistor above lowermost transistor, the grid of transistor be ground state when exchange, uppermost transistor in this structure therefore can be caused to occur at first puncturing and the transistor in the most beneath face occurs the situation of entrance linear zone at first；It addition, this structure can not ensure that the output impedance of each transistor is optimum impedance well, therefore, this structure output power relative drop.It is an object of the invention to overcome weak point of the prior art, it is provided that the radio-frequency power amplifier of the high-gain and high-power of a kind of balanced type, it is achieved through the following technical solutions:
The radio-frequency power amplifier of the high-gain and high-power of a kind of balanced type, including being the orthocoupler, 3dB power splitter, 45 degree of phase-shift networks, matching network and the power amplifier that connect of balanced, symmetrical.
Further, the front-end and back-end of described power amplifier are respectively arranged with an orthocoupler, two 3dB power splitters, two 45 degree of phase-shift networks and four matching networks.
Further, signal source connects the input of front end orthocoupler, and two outfans of described front end orthocoupler connect the input of a front end 3dB power splitter respectively；One input of one of them 45 degree of phase-shift network that are linked in sequence of two outfans of each described front end 3dB power splitter, matching network, power amplifier, matching network and a rear end 3dB power splitter；Another outfan of described front end 3dB power splitter is linked in sequence another input of matching network, power amplifier, matching network, 45 degree of phase-shift networks and described rear end 3dB power splitter；The outfan of said two rear end 3dB power splitter connects an input of rear end orthocoupler respectively.
Further, input signal is divided into that two-way amplitude is identical but the radiofrequency signal of phase 90 degree by described front end orthocoupler, and the output signal of two rear end 3dB power splitters is merged into single-ended signal by described rear end orthocoupler.
Further, described 45 degree of phase-shift networks are by 45 degree of phase outputs of signal delay of input.
Further, the resistance of the connect load of isolation end of described front-end and back-end orthocoupler is identical, for Z0。
Input signal premenstrual end orthocoupler is divided into that two amplitudes are equal but the radiofrequency signal of phase 90 degree, then arrival next stage circuit after front end 3dB power splitter is divided equally respectively.A wherein road output signal of two front end 3dB power splitters connects with matching network through 45 degree of phase-shift networks, then power amplifier input is arrived, the outfan of this power amplifier directly connects with matching network, another road output signal directly connects with matching network, then power amplifier input is arrived, the outfan of this power amplifier directly connects with matching network, and the outfan of this matching network and 45 degree of phase-shift networks connect.Above-mentioned four road signals finally respectively through two rear end 3dB power splitter synthesis Single-end outputs, are then passed through rear end orthocoupler by the output signal syntheses Single-end output of two rear end 3dB power splitters.
Beneficial effects of the present invention: the present invention provides the high-gain of a kind of balanced type and high-power RF power amplifier circuit structure, have employed the circuit structure of symmetry, balanced type, this structure not only increases the power output capacity of radio-frequency power amplifier, also improves the gain of whole radio-frequency power amplifier and alleviates the problem of heat radiation.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the embodiment of the present invention.
Detailed description of the invention
One preferred embodiment of the present invention, the radio-frequency power amplifier of the high-gain and high-power of a kind of balanced type, including being the orthocoupler, 3dB power splitter, 45 degree of phase-shift networks, matching network and the power amplifier that connect of balanced, symmetrical.The front-end and back-end of described power amplifier are respectively arranged with an orthocoupler, two 3dB power splitters, two 45 degree of phase-shift networks and four matching networks.Signal source connects the input of front end orthocoupler, and two outfans of described front end orthocoupler connect the input of a front end 3dB power splitter respectively；One input of one of them 45 degree of phase-shift network that are linked in sequence of two outfans of each described front end 3dB power splitter, matching network, power amplifier, matching network and a rear end 3dB power splitter；Another outfan of described front end 3dB power splitter is linked in sequence another input of matching network, power amplifier, matching network, 45 degree of phase-shift networks and described rear end 3dB power splitter；The outfan of said two rear end 3dB power splitter connects an input of rear end orthocoupler respectively.Input signal is divided into that two-way amplitude is identical but the radiofrequency signal of phase 90 degree by described front end orthocoupler, and the output signal of two rear end 3dB power splitters is merged into single-ended signal by described rear end orthocoupler.Described 45 degree of phase-shift networks are by 45 degree of phase outputs of signal delay of input.The resistance of the connect load of isolation end of described front-end and back-end orthocoupler is identical, for Z0。
Input signal premenstrual end orthocoupler is divided into that two amplitudes are equal but the radiofrequency signal of phase 90 degree, then arrival next stage circuit after front end 3dB power splitter is divided equally respectively.A wherein road output signal of two front end 3dB power splitters connects with matching network through 45 degree of phase-shift networks, then power amplifier input is arrived, the outfan of this power amplifier directly connects with matching network, another road output signal directly connects with matching network, then power amplifier input is arrived, the outfan of this power amplifier directly connects with matching network, and the outfan of this matching network and 45 degree of phase-shift networks connect.Above-mentioned four road signals finally respectively through two rear end 3dB power splitter synthesis Single-end outputs, are then passed through rear end orthocoupler by the output signal syntheses Single-end output of two rear end 3dB power splitters.
Claims (6)
1. the radio-frequency power amplifier of the high-gain and high-power of a balanced type, it is characterised in that: including is the orthocoupler, 3dB power splitter, 45 degree of phase-shift networks, matching network and the power amplifier that connect of balanced, symmetrical.
2. the radio-frequency power amplifier of the high-gain and high-power of balanced type according to claim 1, it is characterised in that: the front-end and back-end of described power amplifier are respectively arranged with an orthocoupler, two 3dB power splitters, two 45 degree of phase-shift networks and four matching networks.
3. the radio-frequency power amplifier of the high-gain and high-power of balanced type according to claim 2, it is characterized in that: signal source connects the input of front end orthocoupler, and two outfans of described front end orthocoupler connect the input of a front end 3dB power splitter respectively；One input of one of them 45 degree of phase-shift network that are linked in sequence of two outfans of each described front end 3dB power splitter, matching network, power amplifier, matching network and a rear end 3dB power splitter；Another outfan of described front end 3dB power splitter is linked in sequence another input of matching network, power amplifier, matching network, 45 degree of phase-shift networks and described rear end 3dB power splitter；The outfan of said two rear end 3dB power splitter connects an input of rear end orthocoupler respectively.
4. the radio-frequency power amplifier of the high-gain and high-power of balanced type according to claim 3, it is characterized in that: input signal is divided into that two-way amplitude is identical but the radiofrequency signal of phase 90 degree by described front end orthocoupler, and the output signal of two rear end 3dB power splitters is merged into single-ended signal by described rear end orthocoupler.
5. the radio-frequency power amplifier of the high-gain and high-power of balanced type according to claim 4, it is characterised in that: described 45 degree of phase-shift networks are by 45 degree of phase outputs of signal delay of input.
6. the radio-frequency power amplifier of the high-gain and high-power of the balanced type according to claim 1 to 5 any claim, it is characterised in that: the resistance of the connect load of isolation end of described front-end and back-end orthocoupler is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248105.8A CN105811898A (en) | 2016-04-20 | 2016-04-20 | Balanced type high-gain and high-power radio frequency power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248105.8A CN105811898A (en) | 2016-04-20 | 2016-04-20 | Balanced type high-gain and high-power radio frequency power amplifier |
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| CN105811898A true CN105811898A (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610248105.8A Pending CN105811898A (en) | 2016-04-20 | 2016-04-20 | Balanced type high-gain and high-power radio frequency power amplifier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107743021A (en) * | 2017-10-10 | 2018-02-27 | 成都嘉纳海威科技有限责任公司 | A kind of strong anti-mismatch high efficiency power amplifier based on transistor stack technology |
| CN108574475A (en) * | 2017-03-08 | 2018-09-25 | 默升科技集团有限公司 | Receiving filter is simulated in finite impulse response (FIR) with the delay chain based on amplifier |
| CN117353260A (en) * | 2023-11-02 | 2024-01-05 | 深圳市恒运昌真空技术有限公司 | Energy overshoot suppression circuit based on balanced power amplifier and control method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3883789A (en) * | 1988-08-17 | 1990-02-22 | British Aerospace Public Limited Company | Power amplifying assembly |
| KR20010054373A (en) * | 1999-12-06 | 2001-07-02 | 박종섭 | Impedance Matching Apparatus using 3dB-Coupler |
| US6297696B1 (en) * | 2000-06-15 | 2001-10-02 | International Business Machines Corporation | Optimized power amplifier |
| CN102281113A (en) * | 2011-08-03 | 2011-12-14 | 京信通信系统（中国）有限公司 | Communication relay device and standing-wave ratio detection device and method thereof |
| CN102386870A (en) * | 2011-11-16 | 2012-03-21 | 武汉滨湖电子有限责任公司 | Amplitude and phase control equipment and control method for power amplifier |
| CN103066923A (en) * | 2012-12-29 | 2013-04-24 | 福州大学 | Fourth order double balanced power amplificatory circuit |
| CN103475315A (en) * | 2013-09-12 | 2013-12-25 | 电子科技大学 | Method and device for improving linearity of radio frequency power amplifier |
| CN205509994U (en) * | 2016-04-20 | 2016-08-24 | 广东工业大学 | RF power amplifier of high -gain high power of balanced type |
-
2016
- 2016-04-20 CN CN201610248105.8A patent/CN105811898A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3883789A (en) * | 1988-08-17 | 1990-02-22 | British Aerospace Public Limited Company | Power amplifying assembly |
| KR20010054373A (en) * | 1999-12-06 | 2001-07-02 | 박종섭 | Impedance Matching Apparatus using 3dB-Coupler |
| US6297696B1 (en) * | 2000-06-15 | 2001-10-02 | International Business Machines Corporation | Optimized power amplifier |
| CN102281113A (en) * | 2011-08-03 | 2011-12-14 | 京信通信系统（中国）有限公司 | Communication relay device and standing-wave ratio detection device and method thereof |
| CN102386870A (en) * | 2011-11-16 | 2012-03-21 | 武汉滨湖电子有限责任公司 | Amplitude and phase control equipment and control method for power amplifier |
| CN103066923A (en) * | 2012-12-29 | 2013-04-24 | 福州大学 | Fourth order double balanced power amplificatory circuit |
| CN103475315A (en) * | 2013-09-12 | 2013-12-25 | 电子科技大学 | Method and device for improving linearity of radio frequency power amplifier |
| CN205509994U (en) * | 2016-04-20 | 2016-08-24 | 广东工业大学 | RF power amplifier of high -gain high power of balanced type |
Non-Patent Citations (2)
| Title |
|---|
| 吴一多 等: ""200W平衡式脉冲功率放大器的设计与实现"", 《电子器件》 * |
| 陈小群: ""射频功率放大器与微带电路的设计"", 《中国优秀博士学位论文全文数据库 信息科技辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574475A (en) * | 2017-03-08 | 2018-09-25 | 默升科技集团有限公司 | Receiving filter is simulated in finite impulse response (FIR) with the delay chain based on amplifier |
| CN107743021A (en) * | 2017-10-10 | 2018-02-27 | 成都嘉纳海威科技有限责任公司 | A kind of strong anti-mismatch high efficiency power amplifier based on transistor stack technology |
| CN107743021B (en) * | 2017-10-10 | 2024-02-27 | 成都嘉纳海威科技有限责任公司 | High-mismatch-resistance high-efficiency power amplifier based on transistor stacking technology |
| CN117353260A (en) * | 2023-11-02 | 2024-01-05 | 深圳市恒运昌真空技术有限公司 | Energy overshoot suppression circuit based on balanced power amplifier and control method thereof |
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Application publication date: 20160727 |
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