CN107979348A - A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers - Google Patents

A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers Download PDF

Info

Publication number
CN107979348A
CN107979348A CN201610919580.3A CN201610919580A CN107979348A CN 107979348 A CN107979348 A CN 107979348A CN 201610919580 A CN201610919580 A CN 201610919580A CN 107979348 A CN107979348 A CN 107979348A
Authority
CN
China
Prior art keywords
circuit
power
reactance compensation
output
energy transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610919580.3A
Other languages
Chinese (zh)
Inventor
张志仁
李强
王瑞霞
赵雨清
陆荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Science and Technology
Original Assignee
Nanjing University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing University of Science and Technology filed Critical Nanjing University of Science and Technology
Priority to CN201610919580.3A priority Critical patent/CN107979348A/en
Publication of CN107979348A publication Critical patent/CN107979348A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

The invention discloses a kind of single reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers, its course of work:Input signal(1)By input matching circuit(2)With input reactance compensation circuit(3), gate pole bias supply(4)By electric source filter circuit(5)It is connected to power tube(6)Front end, feedback circuit(7)It is parallel to power tube(6)Both ends, drain power supply(8)By electric source filter circuit(9)It is connected to power tube(6)Rear end, power tube(6)Output reactance compensation circuit is passed through in output(10)Output matching circuit(11)With low pass ellipse filter circuit(12), export signal(13).Compared to traditional single-frequency point E class power amplifiers, preferable output power and efficiency can be kept in broad frequency band;System output frequency is convenient to be adjusted, and only needs Regulate signal that the output signal frequency of circuit occurs;Using low pass ellipse filter circuit, the filtering characteristic of broadband E class power amplifier laod networks is enhanced.

Description

A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E class power is put Big device
Technical field
Since broadband type E power-like amplifiers of the present invention are mainly used in the transmission of magnet coupled resonant type wireless electric energy, thus it is main It is related to electronics and RF application.
Background technology
Magnet coupled resonant type wireless electric energy transmission technology is one of three big technology of wireless power transmission, and current domestic and international One of hot spot of research of scholar.But the power of wireless power transmission is also little at present, rests on hectowatt grade, far can not also Meet real-life needs, and improve transimission power and relate generally to following three problems:(1) large-power broadband high-frequency electrical Impedance matching (3) electric energy transmission stability problem of design (2) transmission system parameters in source, i.e. resonant frequency robustness problem.
Wireless power transmission high frequency electric source mainly has two kinds of implementation methods at present, and one kind is passed through using power electronic devices Full-bridge inverting or semi-bridge inversion are realized;One kind is that signal power is amplified realization using power amplifier.The former can realize larger work( Rate, but due to being limited by power electronic devices switching frequency, supply frequency is not generally high, and be not easy to adjust frequency.The latter Can realize relatively high power and frequency, using its preceding signal occur circuit realize that frequency modulation is also very convenient, but equipment cost compared with It is high.
Power amplification formula high frequency electric source is made of signal generating circuit and power amplification circuit, signal generating circuit generation institute The signal of frequency is needed, which is amplified to required power by power amplifier by the signal that signal generating circuit exports.If By amplifier biasing and conducting situation point, power amplifier can be divided into A classes, B classes, AB classes, C classes, D classes, E classes, F classes, S classes Deng.A classes, B classes, AB classes, C classes are typically divided into the power amplifier of classics;D classes, E classes, F classes, S classes are typically divided into switching molding Formula power amplifier.
Wherein, a main thought of Switch power amplifier is to switch not consuming any power, Huo Zhekai in the ideal case The electric current of pass is zero, or the voltage of switch ends is zero, thus V, I product switched is always zero, it means that transistor There is no any power consumption penalty, 100% can be reached on its efficiency theory.In real process, due to the conducting pressure of switching transistor The influence of the factor such as drop and dead resistance, the efficiency of E power-like amplifiers will be less than 100%, but by changing load circuit Parameter optimizes, and the actual efficiency of circuit is still very high.Since high frequency electric source belongs to magnet coupled resonant type Transmission system Front end of emission, to improve total system efficiency of transmission must reduce the loss of each section, and broadband E classes power amplifier reduces switch and turns Changing loss meets us to proposing efficient requirement.
The content of the invention
The broadband E class power amplifiers that the present invention designs belong to nonlinear power amplifier according to whether for Linear Power Amplifier, are put using single tube Greatly, meet ZVS and ZDS conditions, greatly reduce the loss changed between on off state.
Technical problem solved by the invention is to provide a kind of single reactance compensation magnet coupled resonant type wireless electric energy transmission Broadband E power-like amplifiers.
The technical solution for realizing the object of the invention is:
1. a kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers, its composition bag Include:Input signal (1), input matching circuit (2), input reactance compensation circuit (3), gate pole bias supply (4), power filter electricity Road (5), power tube (6), feedback circuit (7), drain electrode power supply (8), electric source filter circuit (9), output reactance compensation circuit (10), output matching circuit (11), low pass ellipse filter circuit (12), output signal (13), wherein:Input signal (1) is passed through Input matching circuit (2) and input reactance compensation circuit (3), gate pole bias supply (4) are connected to work(by electric source filter circuit (5) Rate pipe (6) front end, feedback circuit (7) are parallel to power tube (6) both ends, and drain electrode power supply (8) passes through electric source filter circuit (9) Power tube (6) rear end is connected to, output reactance compensation circuit (10) output matching circuit (11) and low pass are passed through in power tube (6) output Oval filter circuit (12), output signal (13).
2. input matching circuit (2) is made of C2, C3, C4 and L1, L2, L3, L1, L2, L3 are series in circuit, C2, C3, C4 earths.
3. input reactance compensation circuit (3) is made of L4, L5 and C5, C6, L4 and C5 are series in circuit, and L5 is series at door In the bias supply branch of pole, C6 simultaneously connects ground.
4. electric source filter circuit (5) is made of C7, C8, C9, C10, C11 earth.
5. feedback circuit (7) is connected between power tube Q drain electrodes and gate pole by R1 and C12 and formed.
6. electric source filter circuit (9) is made of C13, C14, C15, C16, C17 earth.
7. output reactance compensation circuit (10) is made of L6, L7 and C18, C19, L7 and C19 are series in circuit, L6 series connection In branch is powered in drain electrode, C18 simultaneously connects ground.
8. output matching circuit (11) is made of C20, C21, C22 and L8, L9, L10, L8, L9, L10 are series in circuit, C20, C21, C22 earth.
9. low pass ellipse filter circuit (12) is made of C23, C24, C25, C26, C27 and L11, L12, L13, L11 is in parallel C26, L12 parallel connection C27, be series in circuit, C23, C24, C25 earth together with L13.
Compared with prior art, the present invention its remarkable advantage:
1) it is with strong points for radio energy transmission system frequency range.The most of existing power amplifiers of in the market are GHz communication frequencies Section, few requirements for meeting radio energy transmission system to bandwidth.
2) E classes power amplification efficiency is high.Because switch state meets ZVS and ZDS conditions, greatly reduce switching tube open and Loss during shut-off.
3) working band is wide.Compared to traditional single-frequency point E class power amplifiers, preferable output power can be kept in broad frequency band With efficiency.
4) system frequency is convenient is adjusted.Compared to full-bridge/half-bridge inversion circuit, it is only necessary to which the output of circuit occurs for Regulate signal Signal frequency.
5) low pass ellipse filter circuit is used, enhances the filtering characteristic of broadband E class power amplifier laod networks.Due to broadband E The predominantly higher hamonic wave filtered out is needed in class power amplifier laod network, compared to oval bandwidth-limited circuit, low-pass filter circuit Structure is more simple, reduces the loss of component.
Just since this kind of modified broadband E class power amplifier has the advantages that as above, to be applied to magnet coupled resonant type wireless electricity The utilization rate of front end energy can not only be improved in energy Transmission system to solve system because of frequency point by adjusting frequency The problem of splitting phenomenon and causing output power drastically to decline.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 power amplifier composition frame charts
Fig. 2 power amplifier schematic diagrams
Voltage current waveform is thought in Fig. 3 power amplifier management
Fig. 4 reactance compensation circuit diagram figures
Fig. 5 power amplifier feedback schematic diagrames
Broadband E power-like amplifiers of the Fig. 6 closest to the prior art
In figure:1 is input signal, and 2 be input matching circuit, and 3 be input reactance compensation circuit, and 4 be gate pole bias supply, 5 be electric source filter circuit, and 6 be power tube, and 7 be feedback circuit, and 8 be drain electrode power supply, and 9 be electric source filter circuit, and 10 be defeated Go out reactance compensation circuit, 11 be output matching circuit, and 12 be low pass ellipse filter circuit, and 13 be output signal.
Embodiment
1. broadband E power-like amplifiers
Broadband E power-like amplifiers have a variety of different topology structures, main difference is that reactance compensation circuit is with matching electricity The type on road, the present invention is using the broadband E classes using single reactance compensation technique and Chebyshev's low pass impedance translation circuit Power amplifier, its circuit diagram are as shown in Figure 2.
Input signal 1, input matching circuit 2 (are made of, L1, L2, L3 are series at circuit C2, C3, C4 and L1, L2, L3 In, C2, C3, C4 earth), input reactance compensation circuit 3 (it is made of L4, L5 and C5, C6, L4 and C5 are series in circuit, L5 is series in gate pole bias supply branch, and C6 simultaneously connects ground), gate pole bias supply 4 is Vb, electric source filter circuit 5 (by C7, C8, C9, C10, C11 earth are formed), power tube 6 be Q, feedback circuit 7 (by R1 and C12 be connected on power tube Q drain electrodes with Formed between gate pole), drain electrode power supply 8 is Vcc, and electric source filter circuit 9 is (by C13, C14, C15, C16, C17 earth structure Into), output reactance compensation circuit 10 (is made of, L7 and C19 are series in circuit, and L6 is series at drain electrode L6, L7 and C18, C19 Power in branch, C18 simultaneously connects ground), output matching circuit 11 (is made of, L8, L9, L10 C20, C21, C22 and L8, L9, L10 Be series in circuit, C20, C21, C22 earth), low pass ellipse filter circuit 12 (by C23, C24, C25, C26, C27 and L11, L12, L13 are formed, and L11 parallel connection C26, L12 parallel connections C27, be series in circuit together with L13, and C23, C24, C25 simultaneously couple Ground), export signal 13.
Main components:Freescale RF tube MRF6V2150NBR1, reactance compensation circuit capacitance inductance, power filter It is capacitance, match circuit capacitor and inductor, capacitance, gate pole bias supply, drain electrode power supply, feedback circuit capacitance resistance, low Bandpass filter inductance capacitance.
Broadband E classes power amplifier in order to realize the output of maximal efficiency, its must meet on a wide frequency band following ZVS conditions and ZDS conditions:
ZVS(zero-voltage switching):When switch is changed into turning on (on) state from shut-off (off) state, Collector or the voltage of drain electrode are equal to 0;ZDS(zero-derivative switching):When switch from shut-off (off) shape When state is changed into turning on (on) state, the voltage derivative of collector or drain electrode is equal to 0.Its desired voltage current waveform such as Fig. 3 institutes Show.
2. reactance compensation circuit and Match circuits
The characteristic curve of MRF6V2150NBR1 switching transistors is emulated before tandem circuit design is carried out, It is smaller and enable to the fully on quiescent point of power tube that power attenuation is chosen according to its characteristic curve.
The basic power amplifier designed in order to export maximum power and highest efficiency, it is necessary to obtain basic training The optimum load impedance and source impedance on electric discharge road.In order to obtain the two impedance values, the present invention uses load balance factor (LoadPull) and (Source Pull) method is drawn in source.Load balance factor method is given defeated by being drawn on Smith circle diagrams Enter the grade output power curve of different loads impedance value under power situation, so that it is determined that optimum load impedance value.Source traction method It is similar with load balance factor method.On this basis, in order to realize in broadband type E class power amplifiers, in designed frequency band equally spaced Several frequency points are chosen, try to achieve its optimum load impedance respectively, and take its average to be set to targeted loads impedance and target source impedance.
In practice, the value of load is not generally identical with target impedance value, and target impedance value is generally plural number, It is not pure resistance.Active component progress of the Chebyshev's impedance inverter circuit (match circuit) to target impedance is designed herein Match somebody with somebody, design reactance compensation circuit compensates the reaction component of target impedance.The principle of reactance compensation circuit as shown in figure 4, By rationally designing parameter so that the equivalent reactance of parallel connection part and part in series is mended mutually in wider frequency rate band in circuit Repay, keep the constant of overall equivalent reactance.First introduce below load balance factor and source traction design, then introduce respectively match circuit and The design of reactance compensation circuit.
Design process is as follows:
(1) source impedance is arbitrarily given first, carries out load balance factor, chooses optimum load impedance.
(2) optimum load impedance is set, source traction is carried out, determines optimum source impedance.
(3) optimum source impedance in (2) is set, (1) is repeated and determines optimum load impedance.
(4) constantly carry out circulating the optimum source impedance for reaching stable and load impedance.
(5) chosen at equal intervals under required frequency band frequency point carry out load balance factor and source traction, obtain targeted loads impedance and Target source impedance.
(6) match circuit uses Chebyshev's impedance inverter circuit, consults the design of Chebyshev's impedance transformer design book Each component parameters, the real part of practical impedance and target impedance is matched.
(7) each original paper parameter of impedance inverter circuit is finely adjusted using ADS software smith circle diagrams, ensures circuit Filtering characteristic and transmission characteristic in the case where designing frequency band, complete the design of match circuit.
(8) reactance compensation circuit is designed each component parameters of reactance compensation circuit, is made portion in parallel using single reactance compensation method The equivalent reactance with part in series is divided to be mutually compensated under broadband, the imaginary part of overall reactance and target impedance matches.
(9) each original paper parameter of reactance compensation circuit is finely adjusted using ADS software smith circle diagrams, ensures circuit Equivalent reactance in the case where designing frequency band is kept constant, and completes the design of reactance compensation circuit.
3. Feedback Design
For the transistor for being operated in radio frequency band, stabilization is vital.Stability is also amplifier circuit A most important condition must being fulfilled for.Only stablize, just can guarantee that circuit is no lack of the trend vibrated.In order to
So that circuit stability COEFFICIENT K>1, the following measure of generally use:
(1) it is directly grounded in gate pole by capacitance and small resistor.
(2) in gate pole series resistor and capacitance parallel circuit.
(3) in gate pole and gate pole biasing power-up resistance
(4) feedback circuit is added
The present invention is to take (4) measure, that is, adds feedback circuit, and the schematic diagram of feedback circuit is as shown in Figure 5.
When certain factor causes transistor drain output signal increase, the amount of negative feedback network feedback increases therewith, should After feedback quantity makes the difference with original input signal, original input signal reduces, so as to cause the output quantity reduction that drains.Therefore, negative-feedback net Network is the loop of a Gain Automatic adjusting, and the final result of adjusting is that the drain change of output quantity is suppressed.But its shortcoming exists In this gain flattening technology is to reduce gain and efficiency as cost.
In order to enable the circuitry to the work of stabilization, there is better performance, there is provided good DC power supply is required.If Power supply is considered in meter there may be ripple, while prevents the self-excitation of circuit, improves the efficiency of circuit, devises power supply filter Wave circuit, is mainly completed using capacitance, and the selection of capacitance value is related with circuit power frequency, and it is all to use to be typically chosen C=l/f.This value, while several values are respectively taken up and down in this value again.
When certain factor causes power tube drain electrode output signal Xo increase so that into feedback circuit signal Xf therewith into Ratio increases, and due to entering gate signal Xi=Xs-Xf, therefore Xi will reduce in the case of gate pole bias voltage is constant, and due to Drain electrode output signal Xo=AXi, so Xo will also reduce.Therefore, negative feedback network is the loop of a Gain Automatic adjusting, is adjusted The final result of section is that the change of drain electrode output quantity is suppressed.But it is the disadvantage is that, this gain flattening technology is to reduce Gain and efficiency are cost.
4. realize step:
1) broadband E power-like amplifier power tubes are chosen, inquiry Datasheet has found that MRF6V2150NBR1 meets us Requirement of experiment.
2) DC analysis is carried out to the power tube of selection, determines its quiescent point.
3) stability analysis is carried out to choosing power tube, the coefficient of stability is more than 1, that is, thinks stable.
4) design of basic parameter is carried out to broadband E classes power amplifier.
5) reactance compensation circuit, match circuit are designed.
6) low-pass elliptic filter is designed.
7) design of the electric source filter circuit of gate pole bias voltage and power tube drain electrode supply voltage.
8) emulation of stability, output performance (gain, power, efficiency etc.) is carried out to whole circuit.
9) power amplifier is made.
5. the immediate prior art
Broadband E power-like amplifiers have a variety of different topology structures, main difference is that reactance compensation circuit is with matching electricity The implementation method on road, the immediate broadband E power-like amplifiers of the present invention, as shown in Figure 6.
Wherein, high frequency choke coil RFC2 provides a constant direct current for drain electrode, and R1, C10 improve the stabilization of power tube Property, by the real number that C17, C18, C19 and L4, L5, L6 are formed to plural Chebyshev's low pass impedance translation circuit, possess certain The function of reactance compensation, impedance conversion and filtering, circuit structure is compared simply, but the frequency characteristic of reactance compensation is poor, and by There are certain higher hamonic wave in unspecial filter circuit, output voltage.C16 is a parallel equivalent capacitance, by opening Pipe drain-source the two poles of the earth output equivalent capacitance is closed to form with external ground capacity.Under the action of pumping signal, transistor is in switch work Make state.When transistor saturation conduction, collector voltage waveform is determined by transistor;When the transistor is turned off, collector electricity Corrugating is determined by the transient response of laod network.

Claims (9)

1. a kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers, its composition include:It is defeated Enter signal (1), input matching circuit (2), input reactance compensation circuit (3), gate pole bias supply (4), electric source filter circuit (5), power tube (6), feedback circuit (7), drain electrode power supply (8), electric source filter circuit (9), output reactance compensation circuit (10), output matching circuit (11), low pass ellipse filter circuit (12), output signal (13), it is characterised in that:Input signal (1) electric source filter circuit is passed through by input matching circuit (2) and input reactance compensation circuit (3), gate pole bias supply (4) (5) power tube (6) front end is connected to, feedback circuit (7) is parallel to power tube (6) both ends, and drain electrode power supply (8) is filtered by power supply Wave circuit (9) is connected to power tube (6) rear end, and output reactance compensation circuit (10) output matching circuit is passed through in power tube (6) output (11) with low pass ellipse filter circuit (12), signal (13) is exported.
2. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The input matching circuit (2) is made of C2, C3, C4 and L1, L2, L3, and L1, L2, L3 are series at circuit In, C2, C3, C4 earth.
3. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The input reactance compensation circuit (3) is made of L4, L5 and C5, C6, and L4 and C5 are series in circuit, L5 It is series in gate pole bias supply branch, C6 simultaneously connects ground.
4. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The electric source filter circuit (5) is made of C7, C8, C9, C10, C11 earth.
5. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The feedback circuit (7) is connected between power tube Q drain electrodes and gate pole by R1 and C12 and formed.
6. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The electric source filter circuit (9) is made of C13, C14, C15, C16, C17 earth.
7. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The output reactance compensation circuit (10) is made of L6, L7 and C18, C19, and L7 and C19 are series at circuit In, L6 is series in drain electrode power supply branch, and C18 simultaneously connects ground.
8. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The output matching circuit (11) is made of C20, C21, C22 and L8, L9, L10, and L8, L9, L10 are series at In circuit, C20, C21, C22 earth.
9. list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers according to claim 1, It is characterized in that:The low pass ellipse filter circuit (12) is made of C23, C24, C25, C26, C27 and L11, L12, L13, L11 parallel connection C26, L12 parallel connections C27, be series in circuit, C23, C24, C25 earth together with L13.
CN201610919580.3A 2016-10-21 2016-10-21 A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers Pending CN107979348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610919580.3A CN107979348A (en) 2016-10-21 2016-10-21 A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610919580.3A CN107979348A (en) 2016-10-21 2016-10-21 A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers

Publications (1)

Publication Number Publication Date
CN107979348A true CN107979348A (en) 2018-05-01

Family

ID=62004573

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610919580.3A Pending CN107979348A (en) 2016-10-21 2016-10-21 A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers

Country Status (1)

Country Link
CN (1) CN107979348A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108736847A (en) * 2018-07-24 2018-11-02 成都嘉纳海威科技有限责任公司 High efficiency based on the control of accurate resonance circuit stacks power amplifier against D classes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1454409A (en) * 2000-08-11 2003-11-05 新加坡国立大学 Programmable radio frequency predistortion linearizer and method thereof
CN101517892A (en) * 2006-08-08 2009-08-26 国立大学法人电气通信大学 Harmonic processing circuit and amplifying circuit using the same
CN205160479U (en) * 2015-12-09 2016-04-13 广州海格通信集团股份有限公司 Transmitting channel power amplification circuit of UHF frequency channel
CN205430180U (en) * 2015-11-20 2016-08-03 南京理工大学 Magnetic coupling resonant mode wireless power transmission E class power amplifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1454409A (en) * 2000-08-11 2003-11-05 新加坡国立大学 Programmable radio frequency predistortion linearizer and method thereof
CN101517892A (en) * 2006-08-08 2009-08-26 国立大学法人电气通信大学 Harmonic processing circuit and amplifying circuit using the same
CN205430180U (en) * 2015-11-20 2016-08-03 南京理工大学 Magnetic coupling resonant mode wireless power transmission E class power amplifier
CN205160479U (en) * 2015-12-09 2016-04-13 广州海格通信集团股份有限公司 Transmitting channel power amplification circuit of UHF frequency channel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
С.Г.卡利赫曼 等: "《半导体无线电广播接收机理论与计算基础》", 31 December 1973, 西北电讯工程学院 *
陈天麒: "《微波低噪声晶体管放大器》", 31 January 1983, 人民邮电出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108736847A (en) * 2018-07-24 2018-11-02 成都嘉纳海威科技有限责任公司 High efficiency based on the control of accurate resonance circuit stacks power amplifier against D classes
CN108736847B (en) * 2018-07-24 2023-09-01 成都嘉纳海威科技有限责任公司 High-efficiency inverse D-type stacked power amplifier based on accurate resonant circuit control

Similar Documents

Publication Publication Date Title
CN205430180U (en) Magnetic coupling resonant mode wireless power transmission E class power amplifier
CN104953961B (en) A kind of twin-stage is against D classes power amplification circuit and radio-frequency power amplifier
CN205945655U (en) Harmonic power amplification circuit and RF power amplifier in high broadband of high efficiency
CN204794909U (en) A RF power amplifier for coupling resonance wireless power transmission device
CN204794915U (en) Contrary D class power amplification circuit and RF power amplifier based on harmonic plastic
CN107547050A (en) A kind of twin-stage double frequency-band high efficiency power amplifier
CN101888212B (en) Circuit structure capable of increasing linearity and power added efficiency of power amplifier
CN214256246U (en) Novel Doherty power amplifier with rear matching structure
CN108933569A (en) A kind of broadband magnet coupled resonant type wireless electric energy transmission E power-like amplifier
CN103337964A (en) Ultrahigh frequency isolation push-pull resonant power converter
CN113162554A (en) Harmonic control-based hybrid high-efficiency power amplifier and design method thereof
CN201726362U (en) Circuit structure for improving linearity and PAE of power amplifier
CN107306118A (en) Power amplifier module
CN102969986B (en) Output circuit structure of radio frequency power amplifier
CN112838831B (en) Novel rear matching structure Doherty power amplifier
CN106505901B (en) A kind of linear-resonance combined type hyperfrequency inverter
CN107979348A (en) A kind of list reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers
CN107979344A (en) A kind of double reactance compensation magnet coupled resonant type wireless electric energy transmission broadband E power-like amplifiers
CN208539862U (en) A kind of continuous inverse F class stacking power amplifier based on wave control technology
CN107979347A (en) A kind of width working band magnet coupled resonant type wireless electric energy transmission E power-like amplifiers
Boutayeb et al. Output matching network design for broadband class B/J power amplifier
CN110086439A (en) It is applicable in the F class out-phase power amplification circuit and RF power combiner of 5G network
CN108923755B (en) Small direct current feed inductance class E power amplifier with voltage reduction load circuit
CN103312279B (en) A kind of DE power-like amplifier and method for designing thereof
CN114123994A (en) Active multi-reactance compensation output topological structure based on switch E-type mode power amplifier

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180501