CN107453731A - A kind of radio-frequency power synthesizer - Google Patents
A kind of radio-frequency power synthesizer Download PDFInfo
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- CN107453731A CN107453731A CN201710703760.2A CN201710703760A CN107453731A CN 107453731 A CN107453731 A CN 107453731A CN 201710703760 A CN201710703760 A CN 201710703760A CN 107453731 A CN107453731 A CN 107453731A
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- Prior art keywords
- balun
- amplifier group
- input
- electrically connected
- output end
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/38—One-way transmission networks, i.e. unilines
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Abstract
The embodiment of the invention discloses a kind of radio-frequency power synthesizer, including：First balun, the second balun, the first amplifier group and the second amplifier group；The input of the first amplifier group and the input of the second amplifier group are electrically connected with, and the output end of the output end of the first amplifier group and the second amplifier group is electrically connected with；The output end of first balun is electrically connected with the input of the first amplifier group and the second amplifier group；The input of the output end of the first amplifier group and the second amplifier group and second balun is electrically connected with.Second harmonic can be eliminated by carrying out cooperation by balun and amplifier, improve the quality of output signal, simultaneously because the cost of balun is less than the cost of electric bridge, when synthesizing larger compared with using electric bridge, great amount of cost can be saved using balun, solve even-order harmonic to be difficult to eliminate, cost higher technical problem when having a strong impact on normal signal quality, and synthesizing larger.
Description
Technical field
The present invention relates to radio-frequency power to synthesize field, more particularly to a kind of radio-frequency power synthesizer.
Background technology
It is spuious to the quality requirement of signal also more and more higher, particularly harmonic signal since mechanics of communication develops rapidly
The device distorted signal such as signal, has had a strong impact on the quality of normal signal；When designing circuit, particularly it is more than in design bandwidth
During the radio-frequency power synthesis module of one times of initial frequency (cut-off frequency is more than 2 times of starting frequency), technical staff often uses
Electric bridge is isolated, but electric bridge can not improve even-order harmonic, and expensive, be result in even-order harmonic and is difficult to eliminate, has a strong impact on just
Regular signal quality, and synthesize it is larger when the higher technical problem of cost.
The content of the invention
The embodiments of the invention provide a kind of radio-frequency power synthesizer, passes through balun (Balance-Unbalance, letter
Claim BALUN) and amplifier carry out cooperation and can eliminate even-order harmonic, improve the quality of output signal, simultaneously because balun into
This is less than the cost of electric bridge, and when synthesizing larger compared with using electric bridge, great amount of cost can be saved using balun, is solved
Even-order harmonic is difficult to eliminate, cost higher technical problem when having a strong impact on normal signal quality, and synthesizing larger.
A kind of radio-frequency power synthesizer provided by the invention, including：First balun, the second balun, the first amplifier group
With the second amplifier group；
The input of the first amplifier group and the input of the second amplifier group are electrically connected with, and described first puts
The output end of big device group is electrically connected with the output end of the second amplifier group；
The input of the output end of first balun and the first amplifier group and the second amplifier group is electrical
Connection；
The input of the output end of the first amplifier group and the second amplifier group and second balun is electrical
Connection.
Preferably, in addition to：3rd balun, the 4th balun, the 3rd amplifier group, the 4th amplifier group, the first electric bridge,
Two electric bridges；
The input of the 3rd amplifier group is electrically connected with the input of the 4th amplifier group, and the described 3rd puts
The output end of big device group is electrically connected with the output end of the 4th amplifier group；
The input of the output end and the 3rd amplifier group and the 4th amplifier group of 3rd balun is electrical
Connection；
The input of the output end and the 4th balun of the 3rd amplifier group and the 4th amplifier group is electrical
Connection；
First output end of the input of first balun and first electric bridge is electrically connected with, the 3rd balun
Second output end of input and first electric bridge is electrically connected with；
The output end of second balun and the first input end of second electric bridge are electrically connected with, the 4th balun
Output end and the second input of second electric bridge are electrically connected with.
Preferably, first balun, second balun, the 3rd balun and the 4th balun are symmetrical expression
Balun.
Preferably, the meter of the length of first balun, second balun, the 3rd balun and the 4th balun
Calculating formula is：
C be electromagnetic wave vacuum transmission speed, fqFor the initial frequency of the radio-frequency power synthesizer bandwidth of operation, fp
For the cut-off frequency of the radio-frequency power synthesizer bandwidth of operation.
Preferably, the first amplifier group, the second amplifier group, the 3rd amplifier group and the described 4th are put
Big device group is the amplifier group of amplifier quantity and amplifier magnification ratio all same.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
The invention provides a kind of radio-frequency power synthesizer, including：First balun, the second balun, the first amplifier group
With the second amplifier group；The input of the first amplifier group and the input of the second amplifier group are electrically connected with, institute
The output end of the output end and the second amplifier group of stating the first amplifier group is electrically connected with；The output end of first balun
It is electrically connected with the input of the first amplifier group and the second amplifier group；The first amplifier group and described
The input of the output end of two amplifier groups and second balun is electrically connected with.The present invention is matched somebody with somebody by balun and amplifier
Conjunction can eliminate second harmonic, improve the quality of output signal, simultaneously because the cost of balun is less than the cost of electric bridge, synthesize
When larger compared with using electric bridge, great amount of cost can be saved using balun, even-order harmonic is solved and is difficult to eliminate, seriously
Cost higher technical problem when influenceing normal signal quality, and synthesizing larger.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of schematic diagram of radio-frequency power synthesizer provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of another radio-frequency power synthesizer provided in an embodiment of the present invention.
Reference is as follows：
1st, the first balun；2nd, the second balun；3rd, the first amplifier group；4th, the second amplifier group；5th, the 3rd balun；6th, the 4th
Balun；7th, the 3rd amplifier group；8th, the 4th amplifier group；9th, the first electric bridge；10th, the second electric bridge.
Embodiment
The embodiments of the invention provide a kind of radio-frequency power synthesizer, and carrying out cooperation by balun and amplifier can disappear
Except even-order harmonic, the quality of output signal is improved, simultaneously because the cost of balun is less than the cost of electric bridge, it is larger synthesizing
When compared with using electric bridge, can save great amount of cost using balun.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Referring to Fig. 1, a kind of one embodiment of radio-frequency power synthesizer provided in an embodiment of the present invention, including：The
One balun 1, the second balun 2, the first amplifier group 3 and the second amplifier group 4；
The input of first amplifier group 3 and the input of the second amplifier group 4 are electrically connected with, the first amplifier group 3
The output end of output end and the second amplifier group 4 is electrically connected with；
The output end of first balun 1 is electrically connected with the input of the first amplifier group 3 and the second amplifier group 4；
The input of the output end of first amplifier group 3 and the second amplifier group 4 and the second balun 2 is electrically connected with.
It should be noted that when currently carrying out radio-frequency power synthesis, technical staff is often isolated using electric bridge, but
It can not improve second harmonic when being and isolate using electric bridge, currently with the development of mechanics of communication, the quality requirement of signal is got over
Come higher, even-order harmonic has had a strong impact on the quality of signal, and elimination even can then be reached by carrying out power combing using balun
The effect of harmonic wave, such as Fig. 1, according to the characteristic of balun, equal in magnitude, phase that input signal by the first balun 1 is divided into two-way
180 degree signal P1 and P2 are differed, is P3 and P4 after amplifier amplifies, is made because the characteristic of amplifier can all produce based on itself
With frequency several times resonant frequency, 2 times are referred to as second harmonic, and 3 times are referred to as triple-frequency harmonics, and 4 times are referred to as four-time harmonic, and so on.
The characteristic synthesized according to radio-frequency power, phase difference 180 degree, fundamental harmonic wave is overlapped mutually, and even-order harmonic is cancelled out each other (phase phase
Poor 0 degree all superposition, 360 degree bases time are offset, even superposition), thus P3 and P4 can be effectively eliminated after synthesizing even-order harmonic from
And improve the quality of signal.
Refer to Fig. 1 and Fig. 2, one embodiment of another radio-frequency power synthesizer provided in an embodiment of the present invention,
Including：First balun 1, the second balun 2, the first amplifier group 3 and the second amplifier group 4；
The input of first amplifier group 3 and the input of the second amplifier group 4 are electrically connected with, the first amplifier group 3
The output end of output end and the second amplifier group 4 is electrically connected with；
The output end of first balun 1 is electrically connected with the input of the first amplifier group 3 and the second amplifier group 4；
The input of the output end of first amplifier group 3 and the second amplifier group 4 and the second balun 2 is electrically connected with.
Further, in addition to：3rd balun 5, the 4th balun 6, the 3rd amplifier group 7, the 4th amplifier group 8, first
Electric bridge 9, the second electric bridge 10；
The input of 3rd amplifier group 7 and the input of the 4th amplifier group 8 are electrically connected with, the 3rd amplifier group 7
The output end of output end and the 4th amplifier group 8 is electrically connected with；
The output end of 3rd balun 5 is electrically connected with the input of the 3rd amplifier group 7 and the 4th amplifier group 8；
The input of the output end of 3rd amplifier group 7 and the 4th amplifier group 8 and the 4th balun 6 is electrically connected with；
First output end of the input of the first balun 1 and the first electric bridge 9 be electrically connected with, the input of the 3rd balun 5 with
Second output end of the first electric bridge 9 is electrically connected with；
The first input end of the output end of second balun 2 and the second electric bridge 10 is electrically connected with, the output end of the 4th balun 6 with
Second input of the second electric bridge 10 is electrically connected with.
It should be noted that even-order harmonic can be eliminated by carrying out synthesis using balun, but the port interval action of balun
It is poor, and standing wave between level can not be improved, so the radio-frequency power synthesizer of the present embodiment adds the first electric bridge 9 and the second electricity
Bridge 10 is isolated.Although electric bridge can not eliminate second harmonic, electric bridge possesses good isolation performance and can improve level
Between standing wave, therefore, the radio-frequency power synthesizer of the present embodiment both can eliminate even-order harmonic by balun, can pass through electricity again
Bridge obtains good isolation performance and improves standing wave between level.
Refer to Fig. 1 and Fig. 2, one embodiment of another radio-frequency power synthesizer provided in an embodiment of the present invention,
Including：First balun 1, the second balun 2, the first amplifier group 3 and the second amplifier group 4；
The input of first amplifier group 3 and the input of the second amplifier group 4 are electrically connected with, the first amplifier group 3
The output end of output end and the second amplifier group 4 is electrically connected with；
The output end of first balun 1 is electrically connected with the input of the first amplifier group 3 and the second amplifier group 4；
The input of the output end of first amplifier group 3 and the second amplifier group 4 and the second balun 2 is electrically connected with.
Further, in addition to：3rd balun 5, the 4th balun 6, the 3rd amplifier group 7, the 4th amplifier group 8, first
Electric bridge 9, the second electric bridge 10；
The input of 3rd amplifier group 7 and the input of the 4th amplifier group 8 are electrically connected with, the 3rd amplifier group 7
The output end of output end and the 4th amplifier group 8 is electrically connected with；
The output end of 3rd balun 5 is electrically connected with the input of the 3rd amplifier group 7 and the 4th amplifier group 8；
The input of the output end of 3rd amplifier group 7 and the 4th amplifier group 8 and the 4th balun 6 is electrically connected with；
First output end of the input of the first balun 1 and the first electric bridge 9 be electrically connected with, the input of the 3rd balun 5 with
Second output end of the first electric bridge 9 is electrically connected with；
The first input end of the output end of second balun 2 and the second electric bridge 10 is electrically connected with, the output end of the 4th balun 6 with
Second input of the second electric bridge 10 is electrically connected with.
Further, the first balun 1, the second balun 2, the 3rd balun 5 and the 4th balun 6 are symmetrical expression balun.
Further, the calculation formula of the length of the first balun 1, the second balun 2, the 3rd balun 5 and the 4th balun 6 is：
C is the transmission speed of electromagnetic wave in a vacuum, fqFor the initial frequency of radio-frequency power synthesizer bandwidth of operation, fp
For the cut-off frequency of radio-frequency power synthesizer bandwidth of operation.
Further, the first amplifier group 3, the second amplifier group 4, the 3rd amplifier group 7 and the 4th amplifier group 8 are to put
The amplifier group of big device quantity and amplifier magnification ratio all same.
It should be noted that balun includes crust, buffer layer and inner core, the length of balun refers to unfold into balun
During straight line balun one end inner core summit to other end inner core summit straight length, when balun length for bandwidth of operation center frequency
Rate it is quarter-wave when, possess preferably radio-frequency power synthetic effect, calculation formula is carried out in embodiment
Description；
In order that circuit balancing, the first amplifier group 3, the second amplifier group 4, the 3rd amplifier group 7 and the 4th amplifier
Group 8 should be the amplifier group of amplifier quantity and amplifier magnification ratio all same.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
Specific work process, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
More than, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to foregoing reality
Example is applied the present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed
Or replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
- A kind of 1. radio-frequency power synthesizer, it is characterised in that including：First balun, the second balun, the first amplifier group and Two amplifier groups；The input of the first amplifier group and the input of the second amplifier group are electrically connected with, first amplifier The output end of group is electrically connected with the output end of the second amplifier group；The output end of first balun is electrically connected with the input of the first amplifier group and the second amplifier group；The input of the output end of the first amplifier group and the second amplifier group and second balun is electrically connected with.
- 2. a kind of radio-frequency power synthesizer according to claim 1, it is characterised in that also include：3rd balun, the 4th Balun, the 3rd amplifier group, the 4th amplifier group, the first electric bridge, the second electric bridge；The input of the 3rd amplifier group is electrically connected with the input of the 4th amplifier group, the 3rd amplifier The output end of group is electrically connected with the output end of the 4th amplifier group；The output end of 3rd balun is electrically connected with the input of the 3rd amplifier group and the 4th amplifier group；The input of the output end of the 3rd amplifier group and the 4th amplifier group and the 4th balun is electrically connected with；First output end of the input of first balun and first electric bridge is electrically connected with, the input of the 3rd balun End and the second output end of first electric bridge are electrically connected with；The output end of second balun and the first input end of second electric bridge are electrically connected with, the output of the 4th balun End and the second input of second electric bridge are electrically connected with.
- A kind of 3. radio-frequency power synthesizer according to claim 2, it is characterised in thatFirst balun, second balun, the 3rd balun and the 4th balun are symmetrical expression balun.
- A kind of 4. radio-frequency power synthesizer according to claim 2, it is characterised in thatFirst balun, second balun, the calculation formula of the length of the 3rd balun and the 4th balun are：<mrow> <mi>L</mi> <mo>=</mo> <mfrac> <mrow> <mo>(</mo> <mfrac> <mi>c</mi> <mrow> <mo>(</mo> <msub> <mi>f</mi> <mi>q</mi> </msub> <mo>+</mo> <msub> <mi>f</mi> <mi>p</mi> </msub> <mo>)</mo> <mo>/</mo> <mn>2</mn> </mrow> </mfrac> <mo>)</mo> </mrow> <mn>4</mn> </mfrac> </mrow>C be electromagnetic wave vacuum transmission speed, fqFor the initial frequency of the radio-frequency power synthesizer bandwidth of operation, fpFor institute State the cut-off frequency of radio-frequency power synthesizer bandwidth of operation.
- A kind of 5. radio-frequency power synthesizer according to claim 2, it is characterised in that：The first amplifier group, the second amplifier group, the 3rd amplifier group and the 4th amplifier group are to put The amplifier group of big device quantity and amplifier magnification ratio all same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703760.2A CN107453731A (en) | 2017-08-16 | 2017-08-16 | A kind of radio-frequency power synthesizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710703760.2A CN107453731A (en) | 2017-08-16 | 2017-08-16 | A kind of radio-frequency power synthesizer |
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| CN107453731A true CN107453731A (en) | 2017-12-08 |
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| CN201710703760.2A Pending CN107453731A (en) | 2017-08-16 | 2017-08-16 | A kind of radio-frequency power synthesizer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462411A (en) * | 2018-11-26 | 2019-03-12 | 锐石创芯（深圳）科技有限公司 | RF Amplifier Module and communication terminal |
| CN113972924A (en) * | 2021-11-26 | 2022-01-25 | 天津光电通信技术有限公司 | Portable short-wave direct-sampling receiver |
| CN115549617A (en) * | 2021-06-30 | 2022-12-30 | 锐石创芯(深圳)科技股份有限公司 | Push-pull power amplifying circuit and radio frequency front end module |
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| US5017886A (en) * | 1989-12-12 | 1991-05-21 | Comsat | RF power combiner using baluns |
| CN1123970C (en) * | 1997-09-17 | 2003-10-08 | 松下电器产业株式会社 | Power splitter/combiner circuit, high power amplifier and balun circuit |
| CN101478288A (en) * | 2008-11-24 | 2009-07-08 | 锐迪科微电子（上海）有限公司 | Method for enhancing efficiency of radio frequency power amplifier and radio frequency power amplifier circuit |
| CN102137518A (en) * | 2010-01-25 | 2011-07-27 | 上海华为技术有限公司 | Doherty power amplifier and multi-frequency band signal parameter adjusting device |
| JP2012205018A (en) * | 2011-03-24 | 2012-10-22 | Furukawa Electric Co Ltd:The | High output power amplifier |
| CN202772253U (en) * | 2012-08-27 | 2013-03-06 | 常州瑞思杰尔电子科技有限公司 | Four-in-one HF high-power synthesizer |
| CN105207623A (en) * | 2015-09-29 | 2015-12-30 | 西安空间无线电技术研究所 | W-waveband high power integrated synthesis frequency multiplication source |
-
2017
- 2017-08-16 CN CN201710703760.2A patent/CN107453731A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017886A (en) * | 1989-12-12 | 1991-05-21 | Comsat | RF power combiner using baluns |
| CN1123970C (en) * | 1997-09-17 | 2003-10-08 | 松下电器产业株式会社 | Power splitter/combiner circuit, high power amplifier and balun circuit |
| CN101478288A (en) * | 2008-11-24 | 2009-07-08 | 锐迪科微电子（上海）有限公司 | Method for enhancing efficiency of radio frequency power amplifier and radio frequency power amplifier circuit |
| CN102137518A (en) * | 2010-01-25 | 2011-07-27 | 上海华为技术有限公司 | Doherty power amplifier and multi-frequency band signal parameter adjusting device |
| JP2012205018A (en) * | 2011-03-24 | 2012-10-22 | Furukawa Electric Co Ltd:The | High output power amplifier |
| CN202772253U (en) * | 2012-08-27 | 2013-03-06 | 常州瑞思杰尔电子科技有限公司 | Four-in-one HF high-power synthesizer |
| CN105207623A (en) * | 2015-09-29 | 2015-12-30 | 西安空间无线电技术研究所 | W-waveband high power integrated synthesis frequency multiplication source |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462411A (en) * | 2018-11-26 | 2019-03-12 | 锐石创芯（深圳）科技有限公司 | RF Amplifier Module and communication terminal |
| CN115549617A (en) * | 2021-06-30 | 2022-12-30 | 锐石创芯(深圳)科技股份有限公司 | Push-pull power amplifying circuit and radio frequency front end module |
| CN113972924A (en) * | 2021-11-26 | 2022-01-25 | 天津光电通信技术有限公司 | Portable short-wave direct-sampling receiver |
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Inventor after: Wu Yuanqing Inventor after: Li Yuexing Inventor after: Liu Gengye Inventor before: Wu Yuanqing |
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Effective date of registration: 20180418 Address after: 510670 Guangzhou science and Technology Development Zone, Guangdong 402, science Avenue 162, B2 Applicant after: Guangzhou whole world communication technology Co., Ltd. Applicant after: Hunan time change communication technology Co., Ltd. Address before: 411100 3 A innovation and entrepreneurship Park, No. 9, Shuang Yong Road, Xiangtan hi tech Zone, Hunan. Applicant before: Hunan time change communication technology Co., Ltd. |
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