CN103580613B - A kind of multichannel power amplification device and its implementation - Google Patents

A kind of multichannel power amplification device and its implementation Download PDF

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Publication number
CN103580613B
CN103580613B CN201210284743.7A CN201210284743A CN103580613B CN 103580613 B CN103580613 B CN 103580613B CN 201210284743 A CN201210284743 A CN 201210284743A CN 103580613 B CN103580613 B CN 103580613B
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China
Prior art keywords
terminal device
doherty
peak
push
power
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CN201210284743.7A
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CN103580613A (en
Inventor
陈化璋
安晋元
王刚
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ZTE Corp
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ZTE Corp
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Priority to CN201210284743.7A priority Critical patent/CN103580613B/en
Priority to PCT/CN2013/081097 priority patent/WO2014023251A1/en
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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
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • 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
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several 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
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only

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

Abstract

The invention discloses a kind of multichannel power amplification device and its implementation, applied to N roads Doherty circuit, multichannel power amplification device includes carrier-frequency amplifier pipe and multi-terminal device, the multi-terminal device includes (N 1) a input pin and (N 1) a output pin, and the both ends of (N 1) a input pin and (N 1) a output pin respectively with (N 1) of N roads Doherty circuit a peak amplifier pipe are connected；Wherein, N is the positive integer more than or equal to 3.Using the present invention, it is possible to increase the uniformity of production, while make design more convenient with debugging, and be conducive to PCB layouts.

Description

A kind of multichannel power amplification device and its implementation
Technical field
The present invention relates to RF power amplifier circuit design field, more particularly to a kind of multichannel power amplification device and its Implementation method.
Background technology
More and more fierce with the competition of base station products, client puts forward many new demands, for example peak-to-average force ratio is further Increase, further lifting of power take-off etc., this has just embodied the advantage of multichannel doherty (Doherty) power amplifier, For example during big rollback 12dB (decibel), three road doherty power amplifiers compare two-way doherty power amplifiers, have more High efficiency.
By taking three traditional tunnel Doherty power amplifiers as an example, as shown in Figure 1, wherein three power tube main (put by carrier frequency Big device), peak (peak amplifier) 1, peak2 be discrete device, but this three road doherty being made of discrete device There are following defect or deficiency for power amplifier：Design and debug relative complex time-consuming, batch production uniformity is difficult to control, and PCB layout areas occupied are big, and arrangement space can be also limited.
The content of the invention
The technical problem to be solved by the present invention is to provide a kind of multichannel power amplification device and its implementation, it is possible to increase production Uniformity, while make design more convenient with debugging, and be conducive to PCB layouts.
In order to solve the above technical problems, the present invention provides a kind of multichannel power amplification device, applied to N roads Doherty (Doherty) circuit,
Described device, which includes carrier-frequency amplifier (main) pipe and multi-terminal device, the multi-terminal device, includes (N-1) a input Pin and (N-1) a output pin, (N-1) a input pin and (N-1) a output pin respectively with the N roads The both ends of (N-1) a peak amplifier (peak) pipe of Doherty circuits are connected；
Wherein, N is the positive integer more than or equal to 3.
Further, described device further includes power distribution unit and power synthesizer,
(N-1) a input pin of the multi-terminal device is connected with the power distribution unit, the multi-terminal device (N-1) a output pin be connected with the power synthesizer.
Further, described device is applied to three road Doherty circuits,
The multi-terminal device is push-pull type device (push-pull) two-terminal devices, in the push-pull two-terminal devices First peak is managed and the tube core of the 2nd peak pipes uses identical chip.
Further, the pipe of the first peak pipes in the push-pull two-terminal devices and the 2nd peak pipes Core is located on same flange.
Further, (N-1) a peak in the doherty circuits of N roads is replaced to manage using multi-terminal device；
The multi-terminal device includes (N-1) a input pin and (N-1) a output pin, (N-1) a input pin It is connected with both ends of (N-1) a output pin respectively with (N-1) a peak pipes；
Wherein, N is the positive integer more than or equal to 3.
Further, (N-1) a input pin of the multi-terminal device is connected with the power distribution unit, described (N-1) a output pin of multi-terminal device is connected with the power synthesizer.
Further, when described device is applied to three road Doherty circuits, the multi-terminal device is push-pull both-ends Device, and the first peak in the push-pull two-terminal devices is managed and the tube core of the 2nd peak pipes uses identical chip.
Further, the pipe of the first peak pipes in the push-pull two-terminal devices and the 2nd peak pipes Core is located on same flange.
The present invention is by three road doherty circuit designs, introducing the two-terminal devices of push-pull (push-pull type device) To replace two discrete peak power tubes, the uniformity of production is improved, while makes design more convenient with debugging, and is more advantageous to PCB is laid out.
Brief description of the drawings
Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of three traditional tunnel Doherty power amplifiers；
Fig. 2 is the schematic diagram of three tunnel Doherty power amplifiers of the embodiment of the present invention.
Embodiment
Present embodiment provides a kind of multichannel power amplification device, is replaced with a multi-terminal device multiple in multichannel doherty Discrete device, to reduce the number of discrete device in multichannel doherty, so as to improve the uniformity of production, and is laid out empty Between further reduce, designing and debugging can also be more convenient.
Further, for N roads Doherty circuits, (N-1) in the N roads Doherty circuits is replaced using multi-terminal device A peak pipes；
The multi-terminal device includes (N-1) a input pin and (N-1) a output pin, (N-1) a input pipe The both ends of foot and (N-1) a output pin respectively with (N-1) a peak pipes of the N roads Doherty circuits are connected；
Wherein, N is the positive integer more than or equal to 3.
Specifically, the multichannel doherty in the present invention can be three road doherty, four road doherty or more road Doherty etc..
Preferably, for three road Doherty circuits, the multi-terminal device is Push-pull two-terminal devices, and this Push- Pull manufactures the tube core in pipe with identical chip, same batch, thus will be significantly to the uniformity of pipe two-way parameter Improve；These tube cores are placed on same flange at the same time, and also so that temperature characterisitic is more consistent, and this in batch production is to pipe The uniformity of the phase and amplitude of two-way can also greatly improve.
For the ease of illustrating the present invention, make below with reference to implementation of the drawings and the specific embodiments to technical solution of the present invention It is described in further detail.It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application Can mutually it be combined.
A kind of multichannel power amplification device is provided in the embodiment of the present invention, as shown in Fig. 2, with three road doherty power amplifications Exemplified by device, which mainly includes two discrete device main pipes 1 and push-pull to pipe 2；Tied by using Push-pull Structure replaces two discrete devices peak1 and peak2 as shown in Figure 1 to pipe 2；In addition, the device further includes input terminal Power distribution unit 3 and output terminal power synthesizer 4, input power Rfin is assigned to by power distribution unit 3 Main pipes and push-pull manage the peak1 pipes in pipe and peak2, and power synthesizer 4 manages main and push-pull pairs Output power Rfout after the power amplified signal of peak1, peak2 in pipe are synthesized.
In conclusion the present invention is come by three road doherty circuit designs, introducing the two-terminal devices of push-pull Instead of two discrete peak power tubes, due to being only to form three road doherty with two power tubes, not only in big rollback timeliness Rate is better than outside two-way doherty, and uniformity of its production is consistent with two-way doherty, therefore, substantially increases three tunnels Consistency problems of the doherty in large-scale production, and make design more convenient with debugging, area smaller shared by PCB, more Be conducive to whole plate layout.
It should be noted that for three road doherty, since main pipes are independent pipes, just use Push-pull replaces pipe peak1 pipes and peak2 pipes in traditional three tunnels.But the present invention program is not limited in three tunnels Doherty, can equally be applicable in for four tunnels or more multichannel, such as be directed to four road doherty, push-pull structures to pipe It can just be replaced with three terminal device, this three terminal device is used for replacing peak1, peak2, peak3, in this way, main pipes add this A three terminal device just forms four tunnels.
It these are only that the present invention's is preferable to carry out case, be not intended to limit the invention, the present invention can also have other Various embodiments, in the case of without departing substantially from spirit of the invention and its essence, those skilled in the art can be according to this hair It is bright to make various corresponding changes and deformation, but these corresponding changes and deformation should all belong to appended claims of the invention Protection domain.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.Combined in this way, the present invention is not restricted to any specific hardware and software.

Claims (8)

  1. A kind of 1. multichannel power amplification device, it is characterised in that applied to N roads Doherty Doherty circuits,
    Described device includes carrier-frequency amplifier pipe and multi-terminal device, and the multi-terminal device includes N-1 input pin and N-1 defeated Go out pin, the N-1 input pin and the N-1 output pin N-1 peak with the N roads Doherty circuits respectively The both ends of value amplifier tube are connected；
    Wherein, N is the positive integer more than or equal to 3.
  2. 2. device as claimed in claim 1, it is characterised in that described device further includes power distribution unit and power combing dress Put,
    The N-1 input pin of the multi-terminal device is connected with the power distribution unit, the multi-terminal device it is described N-1 output pin is connected with the power synthesizer.
  3. 3. device as claimed in claim 1 or 2, it is characterised in that described device is applied to three road Doherty circuits,
    The multi-terminal device is push-pull type two-terminal devices, the first peak value amplifier tube and second in the push-pull type two-terminal devices The tube core of peak amplifier pipe uses identical chip.
  4. 4. device as claimed in claim 3, it is characterised in that
    The tube core of the first peak value amplifier tube and the second peak amplifier pipe in the push-pull type two-terminal devices is set On same flange.
  5. A kind of 5. implementation method of multichannel power amplification device, it is characterised in that
    N-1 peak amplifier pipe in the Doherty Doherty circuits of N roads is replaced using multi-terminal device；
    The multi-terminal device includes N-1 input pin and N-1 output pin, and the N-1 input pin is a with the N-1 Both ends of the output pin respectively with the N-1 peak amplifier pipe are connected；
    Wherein, N is the positive integer more than or equal to 3.
  6. 6. method as claimed in claim 5, it is characterised in that
    The multichannel power amplification device includes power distribution unit and power synthesizer,
    The N-1 input pin of the multi-terminal device is connected with the power distribution unit, the multi-terminal device it is described N-1 output pin is connected with the power synthesizer.
  7. 7. the method as described in claim 5 or 6, it is characterised in that
    When described device is applied to three road Doherty circuits, the multi-terminal device is push-pull type two-terminal devices, and the push-pull type The tube core of the first peak value amplifier tube and the second peak amplifier pipe in two-terminal devices uses identical chip.
  8. 8. the method for claim 7, it is characterised in that
    The tube core of the first peak value amplifier tube and the second peak amplifier pipe in the push-pull type two-terminal devices is set On same flange.
CN201210284743.7A 2012-08-10 2012-08-10 A kind of multichannel power amplification device and its implementation Active CN103580613B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210284743.7A CN103580613B (en) 2012-08-10 2012-08-10 A kind of multichannel power amplification device and its implementation
PCT/CN2013/081097 WO2014023251A1 (en) 2012-08-10 2013-08-08 Multi-channel power amplification device and implementation method therefor

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Application Number Priority Date Filing Date Title
CN201210284743.7A CN103580613B (en) 2012-08-10 2012-08-10 A kind of multichannel power amplification device and its implementation

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CN103580613B true CN103580613B (en) 2018-05-08

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104917468A (en) * 2014-03-11 2015-09-16 中兴通讯股份有限公司 Three-path reverse Doherty power amplifier and implementation method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101577528A (en) * 2008-05-09 2009-11-11 克里公司 Progressive power generating amplifiers
CN102130657A (en) * 2010-09-14 2011-07-20 华为技术有限公司 Power amplifier, asymmetric Doherty power amplifier equipment and base station

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6798295B2 (en) * 2002-12-13 2004-09-28 Cree Microwave, Inc. Single package multi-chip RF power amplifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101577528A (en) * 2008-05-09 2009-11-11 克里公司 Progressive power generating amplifiers
CN102130657A (en) * 2010-09-14 2011-07-20 华为技术有限公司 Power amplifier, asymmetric Doherty power amplifier equipment and base station

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WO2014023251A1 (en) 2014-02-13

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