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1. (WO2018220668) POWER AMPLIFIER

Pub. No.:    WO/2018/220668    International Application No.:    PCT/JP2017/019892
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue May 30 01:59:59 CEST 2017
IPC: H03F 1/32
H03F 3/21
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: TORII, Takuma
鳥居 拓真
HANGAI, Masatake
半谷 政毅
YAMANAKA, Koji
山中 宏治
ISHIDA, Takao
石田 多華生
EGUCHI, Shinichi
江口 慎一
HATAMOTO, Mikio
畑本 幹夫
Title: POWER AMPLIFIER
Abstract:
The present invention is provided with a distortion compensation circuit (5) that amplifies the amplitude of a differential frequency component which is a component of a frequency difference fd between a first frequency f1 and a second frequency fh which are included in a first amplification signal output by a first amplifier (3), and that shifts the phase of the differential frequency component and applies the amplified and phase-shifted differential frequency component to an output terminal (4a) of a second amplifier (4), wherein a synthesis circuit (13) is configured to synthesize the first amplification signal output by the first amplifier (3) and a signal appearing at the output terminal (4a) of the second amplifier (4).