Power amplifier module
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United States of America Patent
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Jul 19, 2016
Grant Date -
Sep 3, 2015
app pub date -
Feb 12, 2015
filing date -
Feb 28, 2014
priority date (Note) -
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Abstract
A power amplifier module includes a first signal input terminal to which a first radio frequency signal of a first frequency band is input; a second signal input terminal to which a second radio frequency signal of a second frequency band is input; first, second, and third power amplifiers; and a bias control circuit. The first signal input terminal and an input terminal of the first power amplifier are electrically connected to each other, the second signal input terminal and an input terminal of the second power amplifier are electrically connected to each other, output terminals of the first and second power amplifiers and an input terminal of the third power amplifier are electrically connected to each other, and the bias control circuit controls supplying a bias current to one of the first and second power amplifiers depending on a selected frequency band.
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