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1. CN105308857 - 多赫蒂功率放大器和发射机

Office China
Application Number 201480028959.4
Application Date 28.05.2014
Publication Number 105308857
Publication Date 03.02.2016
Grant Number 105308857
Grant Date 26.03.2019
Publication Kind B
IPC
H03F 1/07
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 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
H03F 3/211
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21with semiconductor devices only
211using a combination of several amplifiers
H03F 3/245
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
24of transmitter output stages
245with semiconductor devices only
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
Applicants 华为技术有限公司
Inventors 苏永革
苏永革
杨磊
杨磊
王昆
王昆
Agents 北京龙双利达知识产权代理有限公司 11329
北京龙双利达知识产权代理有限公司 11329
北京龙双利达知识产权代理有限公司 11329
北京龙双利达知识产权代理有限公司 11329
Title
(ZH) 多赫蒂功率放大器和发射机
Abstract
(ZH)
一种多赫蒂功率放大器(100),包括:第一放大电路(101),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。