Title:
POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2018/220668
Kind Code:
A1
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).
Inventors:
TORII TAKUMA (JP)
HANGAI MASATAKE (JP)
YAMANAKA KOJI (JP)
ISHIDA TAKAO (JP)
EGUCHI SHINICHI (JP)
HATAMOTO MIKIO (JP)
HANGAI MASATAKE (JP)
YAMANAKA KOJI (JP)
ISHIDA TAKAO (JP)
EGUCHI SHINICHI (JP)
HATAMOTO MIKIO (JP)
Application Number:
PCT/JP2017/019892
Publication Date:
December 06, 2018
Filing Date:
May 29, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03F1/32; H03F3/21
Domestic Patent References:
| WO2007123040A1 | 2007-11-01 |
Foreign References:
| JP2008028746A | 2008-02-07 | |||
| JP2003174334A | 2003-06-20 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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