Title:
高周波電力増幅器
Document Type and Number:
Japanese Patent JP5059647
Kind Code:
B2
Abstract:
A high frequency power amplifier includes an amplifying device for amplifying an input high frequency signal, a harmonic reflection circuit for reflecting a harmonic outputted from the amplifying device, and a harmonic generating circuit provided at an input terminal of the amplifying device, the harmonic generating circuit including a divider for dividing an input signal of a fundamental wave into two parts, a harmonic generator for generating a second harmonic from one part of the fundamental wave signal, and a combiner for combining the second harmonic generated from the harmonic generator with the other part of the fundamental wave signal to offer a combined signal to the amplifying device, wherein the harmonic reflection circuit reflects the second harmonic.
Inventors:
Kawanabe Shiso
Yoichi Okubo
Yasuo Sera
Manabu Nakamura
Taizo Ito
Toshio Nojima
Yoichi Okubo
Yasuo Sera
Manabu Nakamura
Taizo Ito
Toshio Nojima
Application Number:
JP2008030065A
Publication Date:
October 24, 2012
Filing Date:
February 12, 2008
Export Citation:
Assignee:
Hitachi Kokusai Electric Co., Ltd.
International Classes:
H03F1/02; H03F1/07; H03F3/24; H03F3/60; H03F3/68
Domestic Patent References:
| JP2005318373A |
Attorney, Agent or Firm:
Nobuhiro Funatsu
Kiyotaka Sakamoto
Kiyotaka Sakamoto