Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masatoshi Kamitani0
Katsuhiko Kawashima0
Masahiro Maeda0
Date of Patent
June 2, 2009
0Patent Application Number
117276920
Date Filed
March 28, 2007
0Patent Primary Examiner
Patent abstract
A high-frequency power amplifier device including: a power amplifier circuit which amplifies a high-frequency signal; an output matching circuit connected to an output side of the power amplifier circuit; and a high-frequency circuit connected to an output side of the output matching circuit, which is designed so that X[f] satisfies the relationship expressed as X[L]<X[H], where j denotes an imaginary number, f denotes a frequency, an impedance of the high-frequency circuit viewed from the output matching circuit is defined as Z[f]=R[f]+jX[f], L denotes a lower limit of the frequency, and H denotes an upper limit of the frequency.
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