CN108761234A - Multichannel power amplifier - Google Patents
Multichannel power amplifier Download PDFInfo
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- CN108761234A CN108761234A CN201810504964.8A CN201810504964A CN108761234A CN 108761234 A CN108761234 A CN 108761234A CN 201810504964 A CN201810504964 A CN 201810504964A CN 108761234 A CN108761234 A CN 108761234A
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- 230000003321 amplification Effects 0.000 claims abstract description 53
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 53
- 239000011159 matrix material Substances 0.000 claims abstract description 37
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 21
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010998 test method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000036039 immunity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
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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
- H03F3/189—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
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
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- Power Engineering (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a kind of multichannel power amplifier, matrix radio-frequency switch module includes N number of output RF switch, N-2 input radio frequency switch, M+1 power splitter, M coaxial line, 2 independent bonding terminals；M is N/2 round numbers；N-2 in N number of independent signal input port connect N-2 input radio frequency switch respectively, and in addition 2 connect 2 independent bonding terminals respectively；N number of output RF switch connects N number of signal amplification unit respectively；M+1 power splitter is sequentially arranged at intervals with M coaxial line；The input terminal bonding terminal of each input radio frequency switch selection one coaxial line of connection or the power splitter input terminal bonding terminal adjoined；2 selection one independent bonding terminals of connection in N number of output RF switch or power splitter output end bonding terminal, in addition N-2 selection connect the output end bonding terminal or power splitter output end bonding terminal of a coaxial line.The present invention can improve the accuracy of RF protected ratio experiment, improve test speed.
Description
Technical field
The present invention relates to technical field of electromagnetic compatibility experimentation, more particularly to a kind of to be used for what multi-frequency RF protected ratio was tested
Multichannel power amplifier.
Background technology
The intentional emissions bodies such as RF protected ratio experiment main analog wireless telecom equipment cause radio-frequency radiation to other equipment
Or the phenomenon that Conduction Interference, it is pilot project very crucial in EMC test.Its traditional test method is to experiment
Frequency point in frequency range is tested one by one, and time-consuming for experiment, of high cost.Multi-frequency RF protected ratio test method is current state
Cutting edge technology in the electromagnetic compatibility standard of border, the test method are on the basis of traditional unifrequency RF protected ratio test method
On, single frequency signal is substituted by multiple frequency signals, makes the Radio Frequency Interfere of multiple frequencies while being applied to Device under test,
The bulk test time is saved, is rapidly and efficiently tested to realize, shortens the R&D cycle for enterprise, saves cost.
In the experiment of multi-frequency RF protected ratio, conventional power amplifier includes a signal input port and an output
Signal port, when multi-frequency Radio Frequency Interfere is inputted by individual signals input port, multi-frequency interference signal can merge
For signal all the way.Due to the nonlinear characteristic of power amplifier, multi-frequency interference signal can be believed in power amplification process in fundamental frequency
New frequency component is generated between number, forms non-linear intermodulation effect, this will influence the accuracy of RF protected ratio experiment.
Invention content
The technical problem to be solved in the present invention is to provide a kind of multichannel power amplifiers, can improve RF protected ratio experiment
Accuracy, be easier to realize on hardware, it is convenient for the user to operate into reducing the load of power amplifier, it can be achieved that multi-frequency is tested
Hardware connection, stable structure is reliable, improve test speed.
In order to solve the above technical problems, multichannel power amplifier provided by the invention comprising a signal input part
Mouth matrix, a matrix radio-frequency switch module, a power amplifier module and a signal output port；
The power amplifier module, including N number of signal amplification unit and a combiner, for matrix RF switch mould
The independently power amplification and to be output to signal defeated for signal all the way by combiner synthesis of the different frequency interference signal of block output
Exit port；
The signal input port matrix, including N number of independent signal input port；
The matrix radio-frequency switch module, including N number of output RF switch, N-2 input radio frequency switch, M+1 work(point
Device, M coaxial line, 2 independent bonding terminals；
N is the integer more than or equal to 2, and M is N/2 round numbers；
N-2 in N number of independent signal input port of the signal input port matrix connect respectively the N-2 it is defeated
Enter RF switch；
Other 2 in N number of independent signal input port of the signal input port matrix connect described 2 solely respectively
Vertical bonding terminal；
N number of output RF switch connects N number of signal amplification unit in the power amplifier module respectively；
The M+1 power splitter is sequentially arranged at intervals with the M coaxial line；
Each in the N-2 input radio frequency switch is same according to selection control signal difference corresponding selection connection one
The input terminal bonding terminal of the input terminal bonding terminal of axis or any one power splitter adjoined with the coaxial line；
2 in N number of output RF switch, according to selection control signal, corresponding selection connection one is independently taken respectively
The output end bonding terminal of connecting terminal or power splitter；
Other N-2 in N number of output RF switch, each connects according to selection control signal difference corresponding selection
Connect the output end bonding terminal of coaxial line or the output end bonding terminal of power splitter.
Preferably, 2 in N number of output RF switch, according to selection control signal difference corresponding selection connection one
The output end bonding terminal for the power splitter that a independent bonding terminal or the independent bonding terminal adjoin；
Other N-2 in N number of output RF switch, each connects according to selection control signal difference corresponding selection
Connect the output end bonding terminal of coaxial line or the output end bonding terminal of power splitter that the coaxial line adjoins.
Preferably, the M+1 power splitter, is made of the power splitter of M three port power dividers and the port (1+N).
Three port power divider is equipped with 1 input terminal and 2 output ends, for signal all the way to be divided into according to power
Two paths of signals；
The power splitter of the port (1+N) is equipped with 1 input terminal and N number of output end, is used for signal all the way according to power
It is divided into the roads N signal.
Preferably, N is 4, M 2.
Preferably, each signal amplification unit includes multiple signal amplification modules, carry out multistage to signal amplifies successively.
Preferably, each signal amplification unit includes multiple signal amplification modules, carrying out multichannel to signal simultaneously amplifies.
Preferably, being communicated to the working frequency range of the signal amplification unit of an independent bonding terminal and being communicated to this and independently take
The frequency of the input radio frequency interference signal of the signal input port of connecting terminal matches；
It is communicated to the working frequency range of the signal amplification unit of the output end bonding terminal of a coaxial line and is communicated to this together
The frequency of the input radio frequency interference signal of the signal input port of the input terminal bonding terminal of axis matches.
Preferably, the working frequency range of N number of signal amplification unit is different.
The multichannel power amplifier of the present invention, it is by the switch of matrix radio-frequency switch module 38 that different number signal is defeated
Inbound port switches the unlike signal amplifying unit for being connected to power amplifier module 39, to realize the radio frequency interference multiple frequencies
Signal according to frequency difference from the different input ports of signal input port matrix 37 input, and power amplifier module 39 not
Amplify with individual transmission in signal amplification unit, the Radio Frequency Interfere of different frequency by individual transmission and amplifies, effectively to drop
Non-linear intermodulation between low multifrequency signal improves the accuracy of RF protected ratio experiment, finally logical in signal output port 36
Combining output multi-frequency high-power signal is crossed, is tested for multi-frequency RF protected ratio.The multichannel power amplifier, matrix are penetrated
Frequency switch module 38 can be program-controlled, is easier to realize on hardware, progress switching channel convenient for the user to operate；Multifrequency signal
The individual transmission of unlimited bandwidth amplifies, and solves that multi-frequency pilot system is complicated and unstable, multifrequency signal mixed transport is drawn
The problems such as playing intermodulation between multifrequency signal, and can realize the power between power amplifier amplification module by channel switching
Equilibrium, to reduce the load of power amplifier.It only needs to combine current traditional experiment system, the output of N number of signal source
Port is correspondingly connected to N number of signal input port of the multichannel power amplifier, you can realizes that the hardware of multi-frequency experiment connects
It connects, stable structure is reliable, and test speed can be made to improve N times (because tradition is carried out one by one with single frequency point in theory
Experiment).
Description of the drawings
In order to illustrate more clearly of technical scheme of the present invention, the required attached drawing of the present invention is made below simple
It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people
For member, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of one embodiment of multichannel power amplifier of the present invention；
Fig. 2 is the structural representation of four frequency channel switching states of one embodiment of multichannel power amplifier of the present invention
Figure；
Fig. 3 is the structural representation of three frequency channel switching states of one embodiment of multichannel power amplifier of the present invention
Figure；
Fig. 4 is the structural representation of two frequency channel switching states of one embodiment of multichannel power amplifier of the present invention
Figure；
Fig. 5 is the structural representation of the unifrequency channel switching state of one embodiment of multichannel power amplifier of the present invention
Figure.
Specific implementation mode
Below in conjunction with attached drawing, clear, complete description is carried out to the technical solution in the present invention, it is clear that described
Embodiment is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
All other embodiment that logical technical staff is obtained without making creative work, belongs to protection of the present invention
Range.
Embodiment one
As shown in Figure 1, multichannel power amplifier includes 37, matrix RF switches of a signal input port matrix
38, power amplifier modules 39 of module and a signal output port 36；
The power amplifier module 39, including N number of signal amplification unit and a combiner 35, for matrix radio frequency to be opened
Close module 38 export different frequency interference signal independently power amplification and by combiner synthesis all the way signal be output to
Signal output port 36；
The signal input port matrix 37, including N number of independent signal input port；
The matrix radio-frequency switch module 38, including N number of output RF switch, N-2 input radio frequency switch, M+1 work(
Divide device, M coaxial line, 2 independent bonding terminals；
N is the integer more than or equal to 2, and M is N/2 round numbers；
N-2 in N number of independent signal input port of the signal input port matrix 37 connect the N-2 respectively
Input radio frequency switchs；
Other 2 in N number of independent signal input port of the signal input port matrix 37 connect described 2 respectively
Independent bonding terminal；
N number of output RF switch connects N number of signal amplification unit in the power amplifier module respectively；
The M+1 power splitter is sequentially arranged at intervals with the M coaxial line；
Each in the N-2 input radio frequency switch is same according to selection control signal difference corresponding selection connection one
The input terminal bonding terminal of the input terminal bonding terminal of axis or any one power splitter adjoined with the coaxial line；
2 in N number of output RF switch, according to selection control signal, corresponding selection connection one is independently taken respectively
Connecting terminal or power splitter output end bonding terminal；
Other N-2 in N number of output RF switch, each connects according to selection control signal difference corresponding selection
Connect the output end bonding terminal or power splitter output end bonding terminal of a coaxial line.
Preferably, 2 in N number of output RF switch, according to selection control signal difference corresponding selection connection one
The output end bonding terminal for the power splitter that a independent bonding terminal or the independent bonding terminal adjoin；
Other N-2 in N number of output RF switch, each connects according to selection control signal difference corresponding selection
Connect the output end bonding terminal of coaxial line or the output end bonding terminal of power splitter that the coaxial line adjoins.
The multichannel power amplifier of embodiment one, by the switch of matrix radio-frequency switch module 38 different number signal
Input port switches the unlike signal amplifying unit for being connected to power amplifier module 39, and the radio frequency of multiple frequencies is done to realize
It disturbs signal to input from the different input ports of signal input port matrix 37 according to frequency difference, and in power amplifier module 39
Individual transmission amplifies in unlike signal amplifying unit, and the Radio Frequency Interfere of different frequency by individual transmission and amplifies, with effective
The non-linear intermodulation between multifrequency signal is reduced, the accuracy of RF protected ratio experiment is improved, finally in signal output port 36
Multi-frequency high-power signal is exported by combining, is tested for multi-frequency RF protected ratio.The multichannel power amplifier, matrix
Radio-frequency switch module 38 can be program-controlled, is easier to realize on hardware, progress switching channel convenient for the user to operate；Multi-frequency is believed
The individual transmission amplification of number unlimited bandwidth, solves that multi-frequency pilot system is complicated and unstable, multifrequency signal mixed transport
The problems such as causing intermodulation between multifrequency signal, and can realize the work(between power amplifier amplification module by channel switching
Rate is balanced, to reduce the load of power amplifier.It only needs to combine current traditional experiment system, the defeated of N number of signal source
Exit port is correspondingly connected to N number of signal input port of the multichannel power amplifier, you can realizes the hardware of multi-frequency experiment
Connection, stable structure is reliable, can make in theory test speed improve N times (because of tradition be with single frequency point one by one into
Row experiment).
Embodiment two
Based on the multichannel power amplifier of embodiment one, M+1 power splitter in the matrix radio-frequency switch module 38,
It is made of the power splitter of M three port power dividers and the port (1+N).
Three port power divider is equipped with 1 input terminal and 2 output ends, for signal all the way to be divided into according to power
Two paths of signals；
The power splitter of the port (1+N) is equipped with 1 input terminal and N number of output end, is used for signal all the way according to power
It is divided into the roads N signal.
The multichannel power amplifier of embodiment two, signal input port matrix 37 are inputted for N number of Radio Frequency Interfere,
The different frequency interference signal independently power amplification that power amplifier module 39 is used to matrix radio-frequency switch module 38 export
And signal is output to signal output port all the way by combiner synthesis, three port power dividers are used for signal all the way according to power
It is divided into two paths of signals, the power splitter of the port (1+N) is equipped with 1 input terminal and N number of output end is used for signal all the way according to work(
Rate is divided into the roads N signal；Final output port of the signal output port as multichannel power amplifier, for being put through overpower
Radiofrequency signal output after big.
Embodiment three
Based on the multichannel power amplifier of embodiment two, as shown in Figure 1, N is 4, M 2.I.e.：
The power amplifier module 39, including 4 signal amplification units 31,32,33,34；
The signal input port matrix 37 includes 4 independent signal input ports 1,2,3,4；
The matrix radio-frequency switch module 38 includes 2 three port power dividers 17, the power splitter 19,4 of 18, five port
7,11,2, the input radio frequency switch coaxial line of a output RF switch 6,10,14,16,2,2 independent bonding terminals 5,15；
2 coaxial lines are by the bonding terminal at its both ends respectively with output RF switch 10,14 and input radio frequency switch 7,11
It is connected to form two straight-through roads.
Preferably, each signal amplification unit includes multiple signal amplification modules, carry out multistage to signal amplifies successively.
Preferably, each signal amplification unit includes multiple signal amplification modules, carrying out multichannel to signal simultaneously amplifies.
Preferably, being communicated to the working frequency range of the signal amplification unit of an independent bonding terminal and being communicated to this and independently take
The frequency of the input radio frequency interference signal of the signal input port of connecting terminal matches；
Preferably, being communicated to the working frequency range of the signal amplification unit of the output end bonding terminal of a coaxial line and being connected to
Frequency to the input radio frequency interference signal of the signal input port of the input terminal bonding terminal of the coaxial line matches.
Preferably, the working frequency range of N number of signal amplification unit is different.Signal amplification unit in different accesses
Working frequency range differs, and the set of the working frequency range of signal amplification unit should cover entire experiment frequency range in all accesses, with
Reduce cost.
First coaxial line both ends are input terminal bonding terminal 8 and output end bonding terminal 9；
Second coaxial line both ends are input terminal bonding terminal 12 and output end bonding terminal 13；
The port of one or three port power divider 17 connects input terminal bonding terminal 20 and output end bonding terminal 21,22 respectively；
The port of two or three port power divider 18 connects input terminal bonding terminal 23 and output end bonding terminal 24,25 respectively；
The port of five port power dividers 19 connects input terminal bonding terminal 26 and output end bonding terminal 27,28,29 respectively,
30。
Four frequency channel switching state schematic diagrames of the multichannel power amplifier shown in Fig. 2, when need execute four frequency
When rate RF protected ratio is tested, matrix radio-frequency switch module 38 can be switched, RF switch 6,7,10,11,14,16 is made to be coupled with
Bonding terminal 5,8,9,12,13,15, forms straight-through access, and the Radio Frequency Interfere of four frequencies is inputted by four signals
Port 1,2,3,4 is separately input to four signal amplification units 31,32,33,34 of power amplifier module 39, makes each frequency
Interference signal is independently amplified, during which it is possible to prevente effectively from non-linear intermodulation between different frequency signals, finally after amplification
Four frequency signals by combiner 35 synthesize all the way, then from signal output port 36 export four frequency RF interference signals.
Three frequency channel switching state schematic diagrames of the multichannel power amplifier shown in Fig. 3, when need execute three frequency
When rate RF protected ratio is tested, matrix radio-frequency switch module 38 can be switched, RF switch 6,7,10,11,14,16 is made to be coupled with
Bonding terminal 21,20,22,12,13,15 makes the overlap joint of signal input port 2 to the input terminal bonding terminal of three port power dividers 17
20, interference signal, which can be divided by power after two-way, to be separately input to signal amplification unit 31,32 and is carried out at the same time amplification；Signal
The interference signal of input port 3,4 can respectively by the through path of formation be directly inputted to signal amplification unit 33,34 into
The independent amplification of row, is finally synthesized all the way by amplified three frequency signals by combiner 35, then from signal output port
36 three frequency RF interference signals of output.Since signal input port 2 is connected to two signal amplification units 31,32 simultaneously, have
There is relatively large power-carrying, so can be connected to signal defeated for the interference signal of relatively high power in three frequency interferences signals
Inbound port 2, to play the role of power equalization, to reduce the load of power amplifier.
Two frequency channel switching state schematic diagrames of the multichannel power amplifier shown in Fig. 4, when need execute two frequency
When rate RF protected ratio is tested, matrix radio-frequency switch module 38 can be switched, RF switch 6,7,10,11,14,16 is made to be coupled with
Bonding terminal 21,20,22,23,24,25, make the overlap joint of signal input port 2 to the input terminal bonding terminal of three port power dividers 17
20, interference signal, which can be divided by power after two-way, to be separately input to signal amplification unit 31,32 and is carried out at the same time amplification；Signal
Input port 3 is overlapped to the input terminal bonding terminal 23 of three port power dividers 18, and interference signal can be divided into two-way by power
After be separately input to signal amplification unit 33,34 and be carried out at the same time amplification.To make two frequency signals of signal input port 2,3
Independently amplified, is finally synthesized all the way, then from signal output port by combiner 35 by amplified two frequency signals
36 two frequency RF interference signals of output.
The unifrequency channel switching state schematic diagram of the multichannel power amplifier shown in Fig. 5, when need execute single-frequency
When rate RF protected ratio is tested, matrix radio-frequency switch module 38 can be switched, so that RF switch 6,7,10,14,16 is coupled with and take
Connecting terminal 27,26,28,29,30, so that signal input port 2 is overlapped to the input terminal bonding terminal 26 of five port power dividers 19,
Interference signal, which can be divided by power behind four tunnels, to be separately input to signal amplification unit 31,32,33,34 and is carried out at the same time amplification, most
Afterwards unifrequency Radio Frequency Interfere is exported from signal output port 36 again by amplified frequency signal by combiner 35.
During radiation immunity experiment, due to the voltage standing wave ratio of gain or test site by transmitting antenna
Etc. the influences of factors to reach the power amplifier output power that specific experiment field strength just needs bigger in certain frequencies.
Therefore, it is based on power equalization principle, during executing four frequency radiation immunity experiments, when experiment is required in certain frequencies
It when power exceeds the rated power of power amplifier, can downwards be switched by power amplifier, form three frequencies or two frequencies
Or unifrequent channel switching state tests these Frequency points, to reach power requirement needed for experiment, and improves
The utilization ratio of power amplifier.
The preferred embodiment that these are only the application is not used to limit the application.Those skilled in the art is come
It says, the application can have various modifications and variations.Within the spirit and principles of this application, any modification made by is equal
Replace, improve etc., it should be included within the protection domain of the application.
Claims (8)
1. a kind of multichannel power amplifier, which is characterized in that opened including a signal input port matrix, a matrix radio frequency
Close module, a power amplifier module and a signal output port；
The power amplifier module, including N number of signal amplification unit and a combiner, for matrix radio-frequency switch module is defeated
The different frequency interference signal gone out independently power amplification and by combiner synthesis all the way signal be output to signal output end
Mouthful；
The signal input port matrix, including N number of independent signal input port；
The matrix radio-frequency switch module, including N number of output RF switch, N-2 input radio frequency switch, M+1 power splitter, M
A coaxial line, 2 independent bonding terminals；
N is the integer more than or equal to 2, and M is N/2 round numbers；
N-2 in N number of independent signal input port of the signal input port matrix connect the N-2 input and penetrate respectively
Frequency switchs；
Other 2 in N number of independent signal input port of the signal input port matrix connect described 2 and independently take respectively
Connecting terminal；
N number of output RF switch connects N number of signal amplification unit in the power amplifier module respectively；
The M+1 power splitter is sequentially arranged at intervals with the M coaxial line；
Each in the N-2 input radio frequency switch connects a coaxial line according to selection control signal difference corresponding selection
Input terminal bonding terminal or any one power splitter adjoined with the coaxial line input terminal bonding terminal；
2 in N number of output RF switch, an independent bond end is connected according to selection control signal difference corresponding selection
The output end bonding terminal of son or power splitter；
Other N-2 in N number of output RF switch, each is according to selection control signal difference corresponding selection connection one
The output end bonding terminal of a coaxial line or the output end bonding terminal of power splitter.
2. multichannel power amplifier according to claim 1, which is characterized in that
2 in N number of output RF switch, an independent bond end is connected according to selection control signal difference corresponding selection
The output end bonding terminal for the power splitter that son or the independent bonding terminal adjoin；
Other N-2 in N number of output RF switch, each is according to selection control signal difference corresponding selection connection one
The output end bonding terminal for the power splitter that the output end bonding terminal or the coaxial line of a coaxial line adjoin.
3. multichannel power amplifier according to claim 1, which is characterized in that
The M+1 power splitter is made of the power splitter of M three port power dividers and the port (1+N).
Three port power divider is equipped with 1 input terminal and 2 output ends, for signal all the way to be divided into two-way according to power
Signal；
The power splitter of the port (1+N) is equipped with 1 input terminal and N number of output end, is used for signal all the way according to power decile
For the roads N signal.
4. multichannel power amplifier according to claim 1,2 or 3, which is characterized in that
N is 4, M 2.
5. multichannel power amplifier according to claim 1,2 or 3, which is characterized in that
Each signal amplification unit includes multiple signal amplification modules, and carry out multistage to signal amplifies successively.
6. multichannel power amplifier according to claim 1,2 or 3, which is characterized in that
Each signal amplification unit includes multiple signal amplification modules, and carrying out multichannel to signal simultaneously amplifies.
7. multichannel power amplifier according to claim 1,2 or 3, which is characterized in that
It is communicated to the working frequency range of the signal amplification unit of an independent bonding terminal and is communicated to the letter of the independent bonding terminal
The frequency of the input radio frequency interference signal of number input port matches；
It is communicated to the working frequency range of the signal amplification unit of the output end bonding terminal of a coaxial line and is communicated to the coaxial line
The frequency of input radio frequency interference signal of signal input port of input terminal bonding terminal match.
8. multichannel power amplifier according to claim 1,2 or 3, which is characterized in that
The working frequency range of N number of signal amplification unit is different.
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| CN201810504964.8A CN108761234A (en) | 2018-05-24 | 2018-05-24 | Multichannel power amplifier |
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|---|---|---|---|
| CN201810504964.8A CN108761234A (en) | 2018-05-24 | 2018-05-24 | Multichannel power amplifier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490415A (en) * | 2018-11-30 | 2019-03-19 | 南京江淳机电装备科技有限公司 | A kind of pipe detection system of the multi-channel parallel excitation and acquisition of multi-frequency switching |
| CN109743089A (en) * | 2018-12-07 | 2019-05-10 | 东南大学 | The more precision analog code book generation devices of millimeter wave and method with auxiliary phase-shifter group |
| CN110426563A (en) * | 2019-08-07 | 2019-11-08 | 广州立讯检测有限公司 | A kind of new automobile electronic component radio frequency electromagnetic field radiation immunity test macro |
| CN111446929A (en) * | 2020-04-01 | 2020-07-24 | 锐石创芯（深圳）科技有限公司 | Radio frequency power amplifier and control method |
| CN113225092A (en) * | 2021-04-14 | 2021-08-06 | 荣耀终端有限公司 | Radio frequency amplifying circuit and method |
| CN113406985A (en) * | 2021-07-02 | 2021-09-17 | 中国科学院近代物理研究所 | All-solid-state power source system |
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Application publication date: 20181106 |