Power amplifier insensitive to load impedance changes
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United States of America Patent
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Jan 21, 2014
Grant Date -
Nov 22, 2012
app pub date -
Feb 5, 2010
filing date -
Jan 26, 2010
priority date (Note) -
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Abstract
Disclosed herein is a power amplifier insensitive to load impedance changes. According to the present invention, the power amplifier comprises a power amplification circuit which amplifies an input signal, an output matching circuit connected to an output terminal of the power amplification circuit to perform impedance matching between the power amplification circuit and an antenna load, and a 4-port coupler connected between the output matching circuit and the antenna load.
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