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Title:
HIGH-FREQUENCY POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2012/098863
Kind Code:
A1
Abstract:
The present invention provides a high-frequency power amplifier (21) which amplifies a high-frequency input signal and outputs a signal having one electric power selected from among a plurality of electric powers, comprising a high output path (10a) that is a circuit for amplifying an input signal and outputting a high output signal and a medium output path (100a) that is a circuit for amplifying an input signal and outputting a medium output signal. The high output path (10a) includes a high output amplifier (11a) for amplifying an input signal, an output adjustment circuit (13a) connected to the output node of the high output amplifier (11a), and a switch element (14a) connected to the output node of the output adjustment circuit (13a). The medium output path (100a) includes a medium output amplifier (111) for amplifying an input signal and a switch element (114) connected between the output node of the medium output amplifier (111) and the output node of the output adjustment circuit (13a).

Inventors:
KAMITANI MASATOSHI
MAEDA MASAHIRO
KAWASHIMA KATSUHIKO
SUGIYAMA HIROSHI
Application Number:
PCT/JP2012/000250
Publication Date:
July 26, 2012
Filing Date:
January 18, 2012
Export Citation:
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Assignee:
PANASONIC CORP (JP)
KAMITANI MASATOSHI
MAEDA MASAHIRO
KAWASHIMA KATSUHIKO
SUGIYAMA HIROSHI
International Classes:
H03F3/24; H03F3/189; H03F3/68; H04B1/04
Domestic Patent References:
WO2007129716A12007-11-15
Foreign References:
JP2002171196A2002-06-14
JP2007019585A2007-01-25
JPH05259765A1993-10-08
JP2002246848A2002-08-30
Attorney, Agent or Firm:
NAITO, Hiroki et al. (JP)
Hiroki Naito (JP)
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Claims: