CN106788274A - A kind of road complex RF microwave power amplifier of broadband three - Google Patents
A kind of road complex RF microwave power amplifier of broadband three Download PDFInfo
- Publication number
- CN106788274A CN106788274A CN201710038200.XA CN201710038200A CN106788274A CN 106788274 A CN106788274 A CN 106788274A CN 201710038200 A CN201710038200 A CN 201710038200A CN 106788274 A CN106788274 A CN 106788274A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 238000006243 chemical reaction Methods 0.000 claims abstract description 52
- 238000000638 solvent extraction Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 8
- 238000003786 synthesis reaction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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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
- H03F1/02—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
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/213—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Microwave Amplifiers (AREA)
- Amplifiers (AREA)
Abstract
The present invention provides a kind of road complex RF microwave power amplifier of broadband three, including same phase partitioning circuit, three tunnel intermediate conversion circuits and the non-balanced transmission line transformer that is connected with RF output end being connected with rf inputs；It is connected with same phase partitioning circuit and non-balanced transmission line transformer respectively after three tunnel intermediate conversion circuit Zhong Mei roads intermediate conversion circuit in parallel；Include the input offsets match circuit, frequency microwave push-pull transistor, output feed match circuit, balance transmission line transformer and the transmission line balun that are sequentially connected per road intermediate conversion circuit；It is connected with same phase partitioning circuit after being input into offsets match circuit in parallel per the input of road intermediate conversion circuit；Output end per road intermediate conversion circuit is connected by after the parallel connection of transmission line balun with non-balanced transmission line transformer.The power amplifier can realize synthesis and the conversion of load line, and simple circuit, final to be capable of achieving with wide and save space effect, it is adaptable to which that radio frequency and microwave low end frequency are used.
Description
Technical field
The present invention relates to technical field of electronic communication, more specifically to a kind of road complex RF microwave work(of broadband three
Rate amplifier.
Background technology
Radio-frequency power amplifier is the important component of various transmitting sets.In the front stage circuits of emitter, adjust
RF signal power very little produced by oscillating circuit processed is, it is necessary to by one buffer stage of a series of amplification, interstage amplifier section, end
Level power-amplifier stage, obtains after enough radio-frequency powers, can just be fed on antenna and radiate.It is sufficiently large in order to obtain
Radio frequency power output, it is necessary to use radio-frequency power amplifier.
In the prior art, frequency microwave wideband power amplifer of the bandwidth more than octave is closed usually using even number road
Into the synthesis of such as 2 tunnels or 4 tunnels synthesize.For odd number road synthesizes, existing frequency microwave wideband power amplifer is seldom used
Arrive, because the synthesis of odd number road is typically combined to Wilkinson mode is same, this mode can cause that bandwidth narrows.However,
During practice, frequency microwave wideband power amplifer has that power is inadequate using the meeting that 2 tunnels synthesize, and uses
The meeting of 4 tunnels synthesis has that power amplifier size is big and efficiency is low, high cost situation.Therefore, at this stage in broadband odd number
Road synthesizes the technical of power amplifier, and urgent need research and development are a kind of to be synthesized power amplifier to solve above-mentioned even number road to the tunnel of broadband three
The technical problem of synthesis.
The content of the invention
It is an object of the invention to overcome shortcoming of the prior art with deficiency, there is provided a kind of road complex RF of broadband three is micro-
Power Amplifier, the road complex RF microwave power amplifier of broadband three can realize synthesis and the conversion of load line, Er Qie electricity
Road is succinct, final to be capable of achieving with wide and save space effect, it is adaptable to which that radio frequency and microwave low end frequency are used.
In order to achieve the above object, the technical scheme is that：A kind of road complex RF of broadband three
Microwave power amplifier, is connected with rf inputs and RF output end respectively, it is characterised in that：Including connecting with rf inputs
The same phase partitioning circuit that connects, three tunnel intermediate conversion circuits and the non-balanced transmission line transformer being connected with RF output end；It is described
After three tunnel intermediate conversion circuit Zhong Mei roads intermediate conversion circuit in parallel respectively with same phase partitioning circuit and non-balanced transmission line transformation
Device is connected；
It is described to include that the input offsets match circuit being sequentially connected, frequency microwave recommend crystal per road intermediate conversion circuit
Pipe, output feed match circuit, balance transmission line transformer and transmission line balun；Input per road intermediate conversion circuit passes through
It is connected with same phase partitioning circuit after input offsets match circuit in parallel；Output end per road intermediate conversion circuit passes through transmission line bar
It is connected with non-balanced transmission line transformer after human relations parallel connection.
The three tunnels intermediate conversion circuit Zhong Mei roads intermediate conversion circuit is divided with same phase respectively by Wilkinson divider
Connected with circuit and non-balanced transmission line transformer.
Per road intermediate conversion circuit, the input offsets match circuit is connected by balun one, capacitance and peripheral circuit
Connect composition.
Per road intermediate conversion circuit, the output feeds match circuit by choke induction, shunt capacitance and peripheral circuit
Connection composition.Output feed match circuit of the invention is completed to frequency microwave using choke induction (or micro-strip) and shunt capacitance
Radio frequency bypass at the feed of push-pull transistor and direct current supply, at can also be by the balance of balance transmission line transformer
Feed.Match circuit herein is typically the matching that the LC matchings or micro-strip power-up of inductance capacitance are held, it is not necessary to when can also two
Person does not have.
Per road intermediate conversion circuit, the balance transmission line transformer is that conversion ratio is 1:4 balance transmission line transformer；
The balance transmission line transformer is made up of two connections of balun two；Two baluns two are by input alter-parallel, output end
The mode of series connection constitutes balance transmission line transformer.
Specifically, the balun two is the coaxial cable that transmission line impedance is 16~18 ohm.
Per road intermediate conversion circuit, the transmission line balun is the coaxial cable that transmission line impedance is 35 ohm.The present invention
Conversion ratio is 1:The coaxial cable that transmission line impedance is 35 ohm can be carried out impedance conversion by 4 balance transmission line transformer, be become
It is changed to 8~9 ohm of loadline impedance.
The non-balanced transmission line transformer is that conversion ratio is 1:4 non-balanced transmission line transformer；The non-equilibrium biography
Defeated line transformer is made up of two connections of balun three；Two baluns three are in parallel by input, and the mode of output end series connection is constituted
Non-balanced transmission line transformer.
The balun three is the coaxial cable that transmission line impedance is 25 ohm.Conversion ratio of the present invention is 1:4 non-equilibrium biography
The coaxial cable that transmission line impedance is 25 ohm can be carried out impedance conversion by defeated line transformer, be transformed to 12.5 ohm of load line
Impedance.
The length of the coaxial cable is 0.01~0.4 times of wavelength of coaxial cable operating frequency range.
The road complex RF microwave power amplifier of broadband of the invention three using ultra wide band multiple line transformers and
Balun (balun is balanced-unbalanced conversion) coordinates, and is configured by selecting special transmission line impedance, while realizing synthesis and bearing
Wide and save space the function of line conversion, simple circuit, therefore the final band realized is carried, is very suitable for radio frequency and microwave is low
Applied in the frequency of end.
Theoretical according to radio frequency, radio frequency power output is inversely proportional with load line.Common radio-frequency power amplifier is using transmission
It is to use 1 during line transformer:4 or 1:9 conversion, realize the load line of 12.5 ohm or 5.5 ohm.Both load line ratios are
2.25 times, therefore power output ability has the difference more than one times, when middle power is needed, 5.5 ohm have to be selected to bear
Carry line, at this moment power output is bigger, but need power at because to retract power use and efficiency is lower.In the present invention
About 9 ohm of the load line on the road complex RF microwave power amplifier Zhong Mei roads of broadband three is just at above-mentioned 12.5 ohm and 5.5
Between ohm, the alternative of load line is which increased, will be in hgher efficiency in where applicable.
Compared with prior art, the invention has the advantages that and beneficial effect：The road complex RF of broadband of the present invention three is micro-
Power Amplifier can realize synthesis and the conversion of load line, and simple circuit, final to be capable of achieving with wide and save space
Effect, it is adaptable to radio frequency and microwave low end frequency are used.
Brief description of the drawings
Fig. 1 is the schematic diagram of the road complex RF microwave power amplifier of broadband of the present invention three；
Fig. 2 is the circuit diagram of the road complex RF microwave power amplifier of broadband of the present invention three；
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
The present embodiment is by taking the power amplifier of 100-400M300W as an example to being illustrated below.
As depicted in figs. 1 and 2, the road complex RF microwave power amplifier of broadband of the present invention three, respectively with rf inputs
With RF output end connection, it include three tunnels that are connected with rf inputs with phase partitioning circuit, three tunnel intermediate conversion circuits and
The non-balanced transmission line transformer being connected with RF output end, wherein, three tunnel intermediate conversion circuit Zhong Mei roads intermediate conversion circuits
It is connected with phase partitioning circuit and non-balanced transmission line transformer with three tunnels respectively after parallel connection.
Wherein, include that the input offsets match circuit being sequentially connected, frequency microwave recommend crystal per road intermediate conversion circuit
Pipe, output feed match circuit, balance transmission line transformer and transmission line balun；Input per road intermediate conversion circuit passes through
It is connected with same phase partitioning circuit after input offsets match circuit in parallel；Output end per road intermediate conversion circuit passes through transmission line bar
It is connected with non-balanced transmission line transformer after human relations parallel connection.
In the intermediate conversion circuit per road of the invention, input offsets match circuit is by balun one T2, T6, T14, capacitance
C5 and C9, C16 and C20, C27 and C31 and peripheral circuit connection composition.And export feed match circuit by choke induction L2 and
L6, L9 and L13, L16 and L20, shunt capacitance C4 and C10, C15 and C21, C26 and C32 and peripheral circuit connection composition.
Per in the intermediate conversion circuit of road, balance transmission line transformer is that conversion ratio is 1 to the present invention:4 balanced transmission line becomes
Depressor, the balance transmission line transformer is made up of two baluns two T11 and T12, T21 and T22, T31 and T32 connection；Two bars
, by input alter-parallel, the mode of output end series connection constitutes balance transmission for human relations two T11 and T12, T21 and T22, T31 and T32
Line transformer.And, balun two T11 and T12, T21 and T22, T31 and T32 are that transmission line impedance is 17 ohm, and length is 8
Centimetre coaxial cable.
Per in the intermediate conversion circuit of road, transmission line balun T13, T23 and T33 are that transmission line impedance is 35 ohm to the present invention,
Length is 10 centimetres of coaxial cable.
Non-balanced transmission line transformer of the invention is that conversion ratio is 1:4 non-balanced transmission line transformer, this is non-equilibrium
Line transformer is made up of two T41 of balun three and T42 connections；Two T41 of balun three and T42 are in parallel by input, defeated
The mode for going out end series connection constitutes non-balanced transmission line transformer.It is long and it is 25 ohm that the T41 of balun three and T42 are transmission line impedances
Spend the coaxial cable for 8 centimetres.
The length of the above-mentioned coaxial cable of the present invention is 0.01~0.4 times of wavelength of coaxial cable operating frequency range.If
Because length can not meet frequency low side or cable inductance amount not enough the reason for operating frequency range is wide, magnetic core can be added to increase inductance
Amount.
Embodiment two
The present embodiment the difference is that only with embodiment one：Three tunnel intermediate conversion circuit Zhong Mei roads intermediate conversion circuits lead to
Wilkinson divider is crossed to be connected with phase partitioning circuit and non-balanced transmission line transformer with three tunnels respectively.
The present embodiment other structures are consistent with embodiment one.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of road complex RF microwave power amplifier of broadband three, is connected with rf inputs and RF output end respectively, its
It is characterised by：Including be connected with rf inputs same phase partitioning circuit, three tunnel intermediate conversion circuits and with RF output end connect
The non-balanced transmission line transformer for connecing；After the intermediate conversion circuit in parallel of the three tunnels intermediate conversion circuit Zhong Mei roads respectively with same phase
Distributor circuit and non-balanced transmission line transformer are connected；
It is the input offsets match circuit for including being sequentially connected per road intermediate conversion circuit, frequency microwave push-pull transistor, defeated
Go out to feed match circuit, balance transmission line transformer and transmission line balun；Input per road intermediate conversion circuit is by input
It is connected with same phase partitioning circuit after offsets match circuit in parallel；Output end per road intermediate conversion circuit passes through transmission line balun simultaneously
It is connected with non-balanced transmission line transformer after connection.
2. the road complex RF microwave power amplifier of broadband according to claim 1 three, it is characterised in that：In three tunnel
Between change-over circuit Zhong Mei roads intermediate conversions circuit by Wilkinson divider respectively with same phase partitioning circuit and non-equilibrium transmission
Line transformer is connected.
3. the road complex RF microwave power amplifier of broadband according to claim 1 three, it is characterised in that：Turn in the middle of per road
Circuit is changed, the input offsets match circuit is made up of balun one, capacitance and peripheral circuit connection.
4. the road complex RF microwave power amplifier of broadband according to claim 1 three, it is characterised in that：Turn in the middle of per road
Circuit is changed, the output feed match circuit is made up of the connection of choke induction, shunt capacitance and peripheral circuit.
5. the road complex RF microwave power amplifier of broadband according to claim 1 three, it is characterised in that：Turn in the middle of per road
Circuit is changed, the balance transmission line transformer is that conversion ratio is 1:4 balance transmission line transformer；The balanced transmission line transformation
Device is made up of two connections of balun two；Two baluns two constitute balance by input alter-parallel, the mode of output end series connection
Line transformer.
6. the road complex RF microwave power amplifier of broadband according to claim 5 three, it is characterised in that：The balun two
It is coaxial cable that transmission line impedance is 16~18 ohm.
7. the road complex RF microwave power amplifier of broadband according to claim 1 three, it is characterised in that：Turn in the middle of per road
Circuit is changed, the transmission line balun is the coaxial cable that transmission line impedance is 35 ohm.
8. the road complex RF microwave power amplifier of broadband according to claim 1 three, it is characterised in that：It is described non-equilibrium
Line transformer is that conversion ratio is 1:4 non-balanced transmission line transformer；The non-balanced transmission line transformer is by two bars
The connection composition of human relations three；Two baluns three are in parallel by input, and the mode of output end series connection constitutes non-balanced transmission line transformer.
9. the road complex RF microwave power amplifier of broadband according to claim 8 three, it is characterised in that：The balun three
It is coaxial cable that transmission line impedance is 25 ohm.
10. the road complex RF microwave power amplifier of broadband three according to any one of claim 6,7 and 9, its feature
It is：The length of the coaxial cable is 0.01~0.4 times of wavelength of coaxial cable operating frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038200.XA CN106788274B (en) | 2017-01-18 | 2017-01-18 | Broadband three-way synthesized radio frequency microwave power amplifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038200.XA CN106788274B (en) | 2017-01-18 | 2017-01-18 | Broadband three-way synthesized radio frequency microwave power amplifier |
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| CN106788274A true CN106788274A (en) | 2017-05-31 |
| CN106788274B CN106788274B (en) | 2023-10-31 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276542A (en) * | 2017-07-10 | 2017-10-20 | 京信通信系统（中国）有限公司 | Doherty power amplifier devices |
| CN107508559A (en) * | 2017-08-07 | 2017-12-22 | 电子科技大学 | A kind of road Doherty power amplifier devices of new digital dual input three |
| CN109596866A (en) * | 2018-12-26 | 2019-04-09 | 中国电子科技集团公司第十三研究所 | Feed circuit structure and test fixture |
| CN111600559A (en) * | 2020-06-16 | 2020-08-28 | 锐石创芯（深圳）科技有限公司 | Power amplifier output matching circuit, radio frequency front end module and wireless device |
| WO2023065843A1 (en) * | 2021-10-22 | 2023-04-27 | 深圳飞骧科技股份有限公司 | Transformer matching-based three-power synthesis radio frequency power amplifier |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276542A (en) * | 2017-07-10 | 2017-10-20 | 京信通信系统（中国）有限公司 | Doherty power amplifier devices |
| CN107508559A (en) * | 2017-08-07 | 2017-12-22 | 电子科技大学 | A kind of road Doherty power amplifier devices of new digital dual input three |
| CN109596866A (en) * | 2018-12-26 | 2019-04-09 | 中国电子科技集团公司第十三研究所 | Feed circuit structure and test fixture |
| CN111600559A (en) * | 2020-06-16 | 2020-08-28 | 锐石创芯（深圳）科技有限公司 | Power amplifier output matching circuit, radio frequency front end module and wireless device |
| CN111600559B (en) * | 2020-06-16 | 2021-07-06 | 锐石创芯（深圳）科技有限公司 | Power amplifier output matching circuit, radio frequency front end module and wireless device |
| WO2021253597A1 (en) * | 2020-06-16 | 2021-12-23 | 锐石创芯（深圳）科技有限公司 | Power amplifier output matching circuit, radio frequency front-end module, and wireless device |
| WO2023065843A1 (en) * | 2021-10-22 | 2023-04-27 | 深圳飞骧科技股份有限公司 | Transformer matching-based three-power synthesis radio frequency power amplifier |
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