CN109428550A - A kind of radio-frequency power amplifier input matching circuit - Google Patents
A kind of radio-frequency power amplifier input matching circuit Download PDFInfo
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- CN109428550A CN109428550A CN201710784353.9A CN201710784353A CN109428550A CN 109428550 A CN109428550 A CN 109428550A CN 201710784353 A CN201710784353 A CN 201710784353A CN 109428550 A CN109428550 A CN 109428550A
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- 238000000034 method Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
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Classifications
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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
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
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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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
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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
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
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- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
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Abstract
A kind of radio-frequency power amplifier input matching circuit provided by the invention, is related to electronic technology field, and the circuit includes: radio-frequency signal generator；First capacitor, the first capacitor are connect with the radio-frequency signal generator；Input matching circuit, the input matching circuit are connect with the first capacitor；The input terminal of biasing circuit, the biasing circuit accesses a bias voltage, and output end is connect with the input terminal of the input matching circuit；Radio-frequency power amplifier tube, the radio-frequency power amplifier tube are connect with the input matching circuit.Solving since input matching circuit is using sacrifice gain and output power is that cost exchanges stability for, lead to there is technical issues that friendship is big in signals transmission, reached the high stability for realizing radio-frequency power amplifier, adjust gain flatness and avoids the technical effect of the power loss in signals transmission while improving input vswr.
Description
Technical field
The present invention relates to electronic technology field, in particular to a kind of radio-frequency power amplifier input matching circuit.
Background technique
Radio-frequency power supply is the device for generating rf power signal, belongs to the core component of semiconductor manufacturing equipment, institute
There is the equipment for generating plasma progress material processing to require radio-frequency power supply and energy is provided.
Wherein, input matching circuit is mainly used for solving stability, once asking with extremely flatness and input vswr
Topic.
But present inventor during technical solution, it is found that it is as follows above-mentioned technology at least exists in realizing the present invention
Technical problem:
Input matching circuit in the prior art often exchanges stability for as cost to sacrifice gain and output power,
Cause to exist in signals transmission and hands over big power loss.
Summary of the invention
The present invention solves in the prior art by providing a kind of radio-frequency power amplifier input matching circuit due to input
It is that cost exchanges stability for that match circuit, which is using sacrifice gain and output power, causes to exist in signals transmission and hand over greatly
Power loss the technical issues of, reached realize radio-frequency power amplifier high stability, adjust gain flatness and improvement
The purpose of input vswr, and the power loss in signals transmission is avoided, realize the maximum power transfer of signal source,
Improve the performance technologies effect of power amplifier.
In view of the above problems, the present invention is proposed in order to provide a kind of radio-frequency power amplifier input matching circuit.
A kind of radio-frequency power amplifier input matching circuit, the circuit include: radio-frequency signal generator, the radio frequency letter
Number generator sends radiofrequency signal；First capacitor, the output of the input terminal of the first capacitor and the radio-frequency signal generator
End connection receives the radiofrequency signal that the radio-frequency signal generator is sent；Input matching circuit, the input matching circuit
Input terminal connect with the output end of the first capacitor, receive the radiofrequency signal that the first capacitor is sent, while right
The impedance of interelement is matched；The input terminal of biasing circuit, the biasing circuit accesses a bias voltage, the biasing circuit
Output end connect with the input terminal of the input matching circuit；Radio-frequency power amplifier tube, the radio-frequency power amplifier tube it is defeated
Enter end to connect with the output end of the input matching circuit, the radiofrequency signal of input matching circuit output is put
Greatly.
Preferably, the input matching circuit includes: antiresonant circuit, the input terminal of the antiresonant circuit and institute
State the output end connection of biasing circuit, the base stage company of the output end of the antiresonant circuit and the radio-frequency power amplifier tube
It connects, the radiofrequency signal is prevented to shunt through the biasing circuit.
Preferably, the antiresonant circuit includes: inductance, the output of the input terminal of the inductance and the biasing circuit
End connection, the output end of the inductance are connect with the base stage of the radio-frequency power amplifier tube；Second capacitor, second capacitor with
The inductance in parallel connection.
Preferably, the input matching circuit further include: third capacitor, the input terminal and the radio frequency of the third capacitor
The base stage of power amplifier tube connects, and the output end of the third capacitor is connect with the collector of the radio-frequency power amplifier tube.
Preferably, the third capacitor is specially Miller capacitance.
Preferably, the first capacitor is capacitance.
Preferably, the emitter ground connection of the radio-frequency power amplifier tube, the collector of the radio-frequency power amplifier tube is by institute
Radiofrequency signal output is stated, and is connected to a supply voltage.
One or more technical solution provided in the present invention, has at least the following technical effects or advantages:
1. a kind of radio-frequency power amplifier input matching circuit provided by the invention, the circuit includes: radiofrequency signal hair
Raw device, the radio-frequency signal generator send radiofrequency signal；First capacitor, the input terminal of the first capacitor and the radio frequency are believed
The output end connection of number generator, receives the radiofrequency signal that the radio-frequency signal generator is sent；Input matching circuit, institute
The input terminal for stating input matching circuit is connect with the output end of the first capacitor, is received the described of first capacitor transmission and is penetrated
Frequency signal, while the impedance of interelement is matched；The input terminal of biasing circuit, the biasing circuit accesses a biased electrical
Pressure, the output end of the biasing circuit are connect with the input terminal of the input matching circuit；Radio-frequency power amplifier tube, the radio frequency
The input terminal of power amplifier tube is connect with the output end of the input matching circuit, to described in input matching circuit output
Radiofrequency signal amplifies.Solving in the prior art is generation since input matching circuit is using sacrifice gain and output power
Valence exchanges stability for, leads to there is technical issues that friendship is big in signals transmission, has reached realization radio frequency
High stability, adjust gain flatness and the purpose for improving input vswr of power amplifier, and avoid signal transmission
Power loss in the process realizes the maximum power transfer of signal source, improves the performance technologies effect of power amplifier.
2. the present invention passes through antiresonant circuit, the output of the input terminal of the antiresonant circuit and the biasing circuit
End connection, the technical solution that the output end of the antiresonant circuit is connect with the base stage of the radio-frequency power amplifier tube solve
In the prior art since input matching circuit is to lead to letter using gain is sacrificed and output power is that cost exchanges stability for
There is technical issues that hand over big in number transmission process, has further reached prevention radio-frequency input signals through biased electrical
The technical effect that road shunts.
3. the present invention also has a third capacitor by the input matching circuit, the input terminal of the third capacitor with it is described
The base stage of radio-frequency power amplifier tube connects, and the collector of the output end of the third capacitor and the radio-frequency power amplifier tube connects
It connects, solving in the prior art is that cost exchanges stability for since input matching circuit is using sacrifice gain and output power
, lead to there is technical issues that friendship is big in signals transmission, to further reach extension working frequency
With the technical effect of steady-working state.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of the technical solution in the present invention
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present application, right
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of connection schematic diagram of radio-frequency power amplifier input matching circuit provided by the invention.
Drawing reference numeral explanation: radio-frequency signal generator 1, rf power amplifier circuit 2, radio frequency power detector 3, supply lines
Road 4, voltage detecting circuit 21, Voltage to current transducer module 22, biasing circuit 23, the first transistor 24, first resistor 211, the
Two resistance 212,3rd resistor 213, second transistor 214.
Specific embodiment
A kind of radio-frequency power amplifier input matching circuit provided by the invention, to solve in the prior art due to input
It is that cost exchanges stability for that match circuit, which is using sacrifice gain and output power, causes to exist in signals transmission and hand over greatly
Power loss the technical issues of.
A kind of overall plan of radio-frequency power amplifier input matching circuit provided by the invention is as follows: radiofrequency signal occurs
Device, the radio-frequency signal generator send radiofrequency signal；First capacitor, the input terminal of the first capacitor and the radiofrequency signal
The output end of generator connects, and receives the radiofrequency signal that the radio-frequency signal generator is sent；Input matching circuit, it is described
The input terminal of input matching circuit is connect with the output end of the first capacitor, receives the radio frequency that the first capacitor is sent
Signal, while the impedance of interelement is matched；The input terminal of biasing circuit, the biasing circuit accesses a bias voltage,
The output end of the biasing circuit is connect with the input terminal of the input matching circuit；Radio-frequency power amplifier tube, the radio frequency function
The input terminal of rate amplifier tube is connect with the output end of the input matching circuit, is penetrated to described in input matching circuit output
Frequency signal amplifies.The high stability for realizing radio-frequency power amplifier, adjust gain flatness are reached and have improved input and has stayed
The purpose of Bobbi, and the power loss in signals transmission is avoided, it realizes the maximum power transfer of signal source, improves
The performance technologies effect of power amplifier.
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Embodiment one
Fig. 1 is a kind of connection schematic diagram of radio-frequency power amplifier input matching circuit provided in an embodiment of the present invention.Such as
Shown in Fig. 1, the circuit includes:
Radio-frequency signal generator 1, the radio-frequency signal generator 1 send radiofrequency signal；
Specifically, radiofrequency signal is to possess the electric wave of certain tranmitting frequency through ovennodulation, and radio-frequency signal generator
1 is one kind of signal generator.For signal generator by signal source there are many kinds of classification method, one of method can be divided into mixing
Signal source and two kinds of logic signal source.Wherein mixed signal source mainly exports analog waveform；Logic signal source exports digital code shape.
Mixed signal source can be divided into function signal generator and random waveform/function generator again, and wherein function signal generator exports
Reference waveform, such as sine wave, square wave, any wave/function generator export the customized random waveform of user；Logical signal hair
Raw device can be divided into pulse signal generator and pattern generator again, wherein the square wave of the smaller number of pulse signal generator driving or
Impulse wave output, pattern generator generate the digital code type in many channels.It include function if the AFG3000 series of Tyke production
Signal generator, random waveform/function signal generator, the function of pulse signal generator.In addition, signal source can also be according to
The classification of type of output signal, as radio-frequency signal generator, sweep generator, frequency synthesizer, noise signal generator,
Pulse signal generator etc..Signal source can also classify according to working frequency, and the signal source of different frequency range corresponds to different application
Field.Used in this application is radio-frequency signal generator 1, for sending the radiofrequency signal.
First capacitor 2, the input terminal of the first capacitor 2 are connect with the output end of the radio-frequency signal generator 1, are received
The radiofrequency signal that the radio-frequency signal generator 1 is sent；The first capacitor 1 is capacitance.
Specifically, the first capacitor 2 be connected to the radio-frequency signal generator 1 and the input matching circuit 3 it
Between, the first capacitor 2 is capacitance, and the capacitance is the isolation between two circuits, but it carries again simultaneously
The function of signal is transmitted, the transmission bigger loss of signal of signal capacitor is smaller, and the capacity the big more is conducive to the biography of low frequency signal
It is defeated.In the art, the electric current usually existing alternating component exported from a certain device, and have flip-flop.If only needing handle
Alternating component is transported to next stage arrangement, as long as accessing a capacitor (referred to as capacitance) between two-stage circuit.Electricity
Stream can only be that AC portion by capacitor reaches latter stage arrangement, direct current component is interposed between previous stage arrangement by capacitor.
Input matching circuit 3, the input terminal of the input matching circuit 3 connect with the output end of the first capacitor 2, connect
The radiofrequency signal that the first capacitor 2 is sent is received, while the impedance of interelement is matched；The input matching circuit
3 include: antiresonant circuit 31, and the input terminal of the antiresonant circuit 31 is connect with the output end of the biasing circuit 4, institute
The output end for stating antiresonant circuit 31 is connect with the base stage of the radio-frequency power amplifier tube 5, prevents the radiofrequency signal through institute
State biasing circuit shunting；The antiresonant circuit 31 includes: inductance 311, the input terminal of the inductance 311 and the biased electrical
The output end on road 4 connects, and the output end of the inductance 311 is connect with the base stage of the radio-frequency power amplifier tube 5；Second capacitor
312, second capacitor 312 is connected in parallel with the inductance 311, the input matching circuit 3 further include: third capacitor 32,
The input terminal of the third capacitor 32 is connect with the base stage of the radio-frequency power amplifier tube 5, the output end of the third capacitor 32
It is connect with the collector of the radio-frequency power amplifier tube 5, the third capacitor 32 is specially Miller capacitance.
Specifically, the input matching circuit 3 is located at the base of the first capacitor 2 and the radio-frequency power amplifier tube 5
Between pole, for the impedance between matching element to avoid radiofrequency signal the power loss in transmission process.Institute provided by the invention
It states input matching circuit 3 to specifically include: one group of antiresonant circuit 31 and third capacitor 32.The antiresonant circuit 31
It is connected between the biasing circuit 4 and the base stage of the radio-frequency power amplifier tube 5, the antiresonant circuit 31 specifically:
The inductance 311 is connected in parallel with second capacitor 312, and electricity is accessed after the inductance 311 is in parallel with second capacitor 312
Road, the second capacitor 312 described in the moment of power on circuitry stream can generate a charging pulse, and the inductance 311 can generate one
Self-induced e.m.f, because the two electric current and voltage max on time phase 90 degree of mutual deviation, this resulted in the two electric current or
Voltage always you it is strong I it is weak or you it is weak I it is strong in the state of change, so as to form oscillation, the antiresonant circuit resonance
In the center of working band, the technical effect for preventing radio-frequency input signals from shunting through biasing circuit 4 is reached.
Further, the third capacitor 32 is specially Miller capacitance, the Miller capacitance (Miller
It Capacitance) is exactly the electricity being connected across between the output end and input terminal of amplifier (device or circuit of amplification work)
Hold.Influence of the Miller capacitance for the frequency characteristic of device or circuit is known as Miller effect.Miller effect is to pass through amplification
For input capacitance come what is worked, i.e. Miller capacitance C can make the equivalent input capacitance of device or circuit increase (1+Av) times,
Av is voltage gain, and the Miller capacitance reaches extension working frequency for negative-feedback and the technology of steady-working state is imitated
Fruit.
Biasing circuit 4, the input terminal of the biasing circuit 4 access a bias voltage, the output end of the biasing circuit 4 with
The input terminal of the input matching circuit 3 connects.
Specifically, the amplifier that transistor is constituted will be accomplished without distortion to amplify signal voltage, it is necessary that brilliant
The emitter junction positively biased of body pipe, collector junction are reverse-biased.Its operating point should be set.So-called operating point is exactly by external circuit
The base stage for making transistor is set, emitter and collector is in required current potential (can obtain according to calculating).These external electricals
Road is known as the biasing circuit 4.
Radio-frequency power amplifier tube 5, the output of the input terminal of the radio-frequency power amplifier tube 5 and the input matching circuit 3
End connection amplifies the radiofrequency signal of the input matching circuit 3 output, the hair of the radio-frequency power amplifier tube 5
The collector of emitter grounding, the radio-frequency power amplifier tube 5 exports the radiofrequency signal, and is connected to a supply voltage.
Specifically, the radio-frequency power amplifier tube 5 is transistor, also referred to as bipolar junction transistor, three pole of crystal
Pipe, is a kind of semiconductor devices of current control electric current, and effect is small-signal to be zoomed into the biggish electric signal of range value.
One or more technical solution provided in the present invention, has at least the following technical effects or advantages:
1. a kind of radio-frequency power amplifier input matching circuit provided by the invention, the circuit includes: radiofrequency signal hair
Raw device, the radio-frequency signal generator send radiofrequency signal；First capacitor, the input terminal of the first capacitor and the radio frequency are believed
The output end connection of number generator, receives the radiofrequency signal that the radio-frequency signal generator is sent；Input matching circuit, institute
The input terminal for stating input matching circuit is connect with the output end of the first capacitor, is received the described of first capacitor transmission and is penetrated
Frequency signal, while the impedance of interelement is matched；The input terminal of biasing circuit, the biasing circuit accesses a biased electrical
Pressure, the output end of the biasing circuit are connect with the input terminal of the input matching circuit；Radio-frequency power amplifier tube, the radio frequency
The input terminal of power amplifier tube is connect with the output end of the input matching circuit, to described in input matching circuit output
Radiofrequency signal amplifies.Solving in the prior art is generation since input matching circuit is using sacrifice gain and output power
Valence exchanges stability for, leads to there is technical issues that friendship is big in signals transmission, has reached realization radio frequency
High stability, adjust gain flatness and the purpose for improving input vswr of power amplifier, and avoid signal transmission
Power loss in the process realizes the maximum power transfer of signal source, improves the performance technologies effect of power amplifier.
2. the present invention passes through antiresonant circuit, the output of the input terminal of the antiresonant circuit and the biasing circuit
End connection, the technical solution that the output end of the antiresonant circuit is connect with the base stage of the radio-frequency power amplifier tube solve
In the prior art since input matching circuit is to lead to letter using gain is sacrificed and output power is that cost exchanges stability for
There is technical issues that hand over big in number transmission process, has further reached prevention radio-frequency input signals through biased electrical
The technical effect that road shunts.
3. the present invention also has a third capacitor by the input matching circuit, the input terminal of the third capacitor with it is described
The base stage of radio-frequency power amplifier tube connects, and the collector of the output end of the third capacitor and the radio-frequency power amplifier tube connects
It connects, solving in the prior art is that cost exchanges stability for since input matching circuit is using sacrifice gain and output power
, lead to there is technical issues that friendship is big in signals transmission, to further reach extension working frequency
With the technical effect of steady-working state.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (7)
1. a kind of radio-frequency power amplifier input matching circuit, which is characterized in that the circuit includes:
Radio-frequency signal generator, the radio-frequency signal generator send radiofrequency signal；
First capacitor, the input terminal of the first capacitor connect with the output end of the radio-frequency signal generator, penetrate described in reception
The radiofrequency signal that frequency signal generator is sent；
Input matching circuit, the input terminal of the input matching circuit is connect with the output end of the first capacitor, described in reception
The radiofrequency signal that first capacitor is sent, while the impedance of interelement is matched；
Biasing circuit, the input terminal of the biasing circuit access a bias voltage, the output end of the biasing circuit with it is described defeated
Enter the input terminal connection of match circuit；
The input terminal of radio-frequency power amplifier tube, the radio-frequency power amplifier tube is connect with the output end of the input matching circuit,
The radiofrequency signal of input matching circuit output is amplified.
2. circuit as described in claim 1, which is characterized in that the input matching circuit includes:
Antiresonant circuit, the input terminal of the antiresonant circuit are connect with the output end of the biasing circuit, the parallel connection
The output end of resonance circuit is connect with the base stage of the radio-frequency power amplifier tube, prevents the radiofrequency signal through the biasing circuit
It shunts.
3. circuit as claimed in claim 2, which is characterized in that the antiresonant circuit includes:
Inductance, the input terminal of the inductance are connect with the output end of the biasing circuit, and the output end of the inductance is penetrated with described
The base stage of frequency power amplifier tube connects；
Second capacitor, second capacitor are connect with the inductance in parallel.
4. circuit as claimed in claim 2, which is characterized in that the input matching circuit further include:
Third capacitor, the input terminal of the third capacitor are connect with the base stage of the radio-frequency power amplifier tube, the third capacitor
Output end connect with the collector of the radio-frequency power amplifier tube.
5. circuit as claimed in claim 4, which is characterized in that the third capacitor is specially Miller capacitance.
6. circuit as described in claim 1, which is characterized in that the first capacitor is capacitance.
7. circuit as described in claim 1, which is characterized in that the emitter of the radio-frequency power amplifier tube is grounded, described to penetrate
The collector of frequency power amplifier tube exports the radiofrequency signal, and is connected to a supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784353.9A CN109428550A (en) | 2017-09-04 | 2017-09-04 | A kind of radio-frequency power amplifier input matching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784353.9A CN109428550A (en) | 2017-09-04 | 2017-09-04 | A kind of radio-frequency power amplifier input matching circuit |
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|---|---|
| CN109428550A true CN109428550A (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710784353.9A Pending CN109428550A (en) | 2017-09-04 | 2017-09-04 | A kind of radio-frequency power amplifier input matching circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037232A (en) * | 2021-03-12 | 2021-06-25 | 上海旦迪通信技术有限公司 | Radio frequency amplifier with BYPASS channel |
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| CN204578486U (en) * | 2015-05-28 | 2015-08-19 | 四川龙瑞微电子有限公司 | A kind of radio frequency power amplifier system |
| WO2016201897A1 (en) * | 2015-06-17 | 2016-12-22 | 深圳市华讯方舟微电子科技有限公司 | Double-stage inverse d-class power amplification circuit and radio frequency power amplifier |
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2017
- 2017-09-04 CN CN201710784353.9A patent/CN109428550A/en active Pending
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|---|---|---|---|---|
| EP1235345A2 (en) * | 2001-02-23 | 2002-08-28 | Nec Corporation | Analog amplifier circuit |
| CN102594264A (en) * | 2012-02-22 | 2012-07-18 | 刘轶 | Radio frequency power amplifier and input matching circuit thereof |
| CN204578486U (en) * | 2015-05-28 | 2015-08-19 | 四川龙瑞微电子有限公司 | A kind of radio frequency power amplifier system |
| WO2016201897A1 (en) * | 2015-06-17 | 2016-12-22 | 深圳市华讯方舟微电子科技有限公司 | Double-stage inverse d-class power amplification circuit and radio frequency power amplifier |
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|---|
| 刘建清: "《从零开始学电子测量技术》", 31 August 2006, 国防工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037232A (en) * | 2021-03-12 | 2021-06-25 | 上海旦迪通信技术有限公司 | Radio frequency amplifier with BYPASS channel |
| CN113037232B (en) * | 2021-03-12 | 2023-11-03 | 上海旦迪通信技术有限公司 | Radio frequency amplifier with BYPASS path |
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Application publication date: 20190305 |
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| RJ01 | Rejection of invention patent application after publication |