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1. WO2015180064 - DOHERTY POWER AMPLIFIER AND TRANSMITTER

Publication Number WO/2015/180064
Publication Date 03.12.2015
International Application No. PCT/CN2014/078630
International Filing Date 28.05.2014
IPC
H03F 1/07 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
04in discharge-tube amplifiers
06to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
07Doherty-type amplifiers
CPC
H03F 1/0288
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
0205in transistor amplifiers
0288using 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
H03F 2200/411
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2200Indexing scheme relating to amplifiers
411the output amplifying stage of an amplifier comprising two power stages
H03F 2203/21103
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2203Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
20Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21with semiconductor devices only
211using a combination of several amplifiers
21103An impedance adaptation circuit being added at the input of a power amplifier stage
H03F 2203/21106
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2203Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
20Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21with semiconductor devices only
211using a combination of several amplifiers
21106An input signal being distributed in parallel over the inputs of a plurality of power amplifiers
H03F 2203/21142
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2203Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
20Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21with semiconductor devices only
211using a combination of several amplifiers
21142Output signals of a plurality of power amplifiers are parallel combined to a common output
H03F 3/189
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
189High frequency amplifiers, e.g. radio frequency amplifiers
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO.,LTD. [CN]/[CN]
Inventors
  • 苏永革 SU, Yongge
  • 杨磊 YANG, Lei
  • 王昆 WANG, Kun
Agents
  • 北京龙双利达知识产权代理有限公司 LONGSUN LEAD IP LTD.
Priority Data
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DOHERTY POWER AMPLIFIER AND TRANSMITTER
(FR) AMPLIFICATEUR DE PUISSANCE DOHERTY ET ÉMETTEUR
(ZH) 多赫蒂功率放大器和发射机
Abstract
(EN)
A Doherty power amplifier (100), comprising: a first amplifier circuit (110), which comprises a main power amplifier branch and at least one auxiliary power amplifier branch, wherein the main power amplifier branch comprises a first main amplifier (111), and each auxiliary power amplifier branch of the at least one auxiliary power amplifier branch comprises multi-stage auxiliary amplifiers (112, 113); a delayer (383), which is connected in the main power amplifier branch for compensating the delay skew between the main power amplifier branch and the at least one auxiliary power amplifier branch; a combination network (140) for performing impedance conversion on the first amplifier circuit (110), and coupling the output of the main power amplifier branch and the output of the at least one auxiliary power amplifier branch to a load (160); a first power distributor (130), which connects the input of the main power amplifier branch and the input of the at least one auxiliary power amplifier branch for distributing the input signal of the first power distributor (130) to the main power amplifier branch and the at least one auxiliary power amplifier branch. The technical solution may improve the efficiency of the Doherty power amplifier (100).
(FR)
L'invention concerne un amplificateur de puissance Doherty (100), comprenant : un premier circuit amplificateur (110), qui comprend une branche d'amplificateur de puissance principal et au moins une branche d'amplificateur de puissance auxiliaire, la branche d'amplificateur de puissance principal comprenant un premier amplificateur principal (111), et chaque branche d'amplificateur de puissance auxiliaire de ladite branche d'amplificateur de puissance auxiliaire comprenant des amplificateurs auxiliaires à plusieurs étages (112, 113) ; un circuit à retard (383), qui est connecté dans la branche d'amplificateur de puissance principal pour compenser la différence de temps de propagation entre la branche d'amplificateur de puissance principal et ladite branche d'amplificateur de puissance auxiliaire ; un réseau de combinaison (140) pour effectuer une conversion d'impédance sur le premier circuit amplificateur (110), et coupler la sortie de la branche d'amplificateur de puissance principal et la sortie de ladite branche d'amplificateur de puissance auxiliaire à une charge (160) ; un premier distributeur de puissance (130), qui connecte l'entrée de la branche d'amplificateur de puissance principal et l'entrée de ladite branche d'amplificateur de puissance auxiliaire pour distribuer le signal d'entrée du premier distributeur de puissance (130) à la branche d'amplificateur de puissance principal et à l'au moins une branche d'amplificateur de puissance auxiliaire. La solution technique peut améliorer l'efficacité de l'amplificateur de puissance Doherty (100).
(ZH)
一种多赫蒂功率放大器(100),包括:第一放大电路(110),包括主功放支路和至少一个辅助功放支路,其中主功放支路包括第一主功率放大器(111),至少一个辅助功放支路中的每个辅助功放支路包括多级辅助功率放大器(112,113);延迟器件(383),连接在主功放支路中,用于补偿主功放支路与至少一个辅助功放支路之间的时延差;合路网络(140),用于对第一放大电路(110)进行阻抗变换,并将主功放支路的输出端与所述至少一个辅助功放支路的输出端耦合到负载(160);第一功率分配器(130),连接主功放支路的输入端和至少一个辅助功放支路的输入端,用于将第一功率分配器(130)的输入信号分配到所述主功放支路和所述至少一个辅助功放支路。该技术方案能够提高多赫蒂功率放大器(100)的效率。
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