Wireless communication device, method and power amplifier of the same
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United States of America Patent
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Mar 29, 2016
Grant Date -
Aug 27, 2015
app pub date -
Dec 7, 2014
filing date -
Feb 27, 2014
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Abstract
A wireless communication device that includes a power amplifier and an antenna is provided. The power amplifier includes a first and a second power amplifying paths, a first and a second selection circuits, first matching circuits and second matching circuits. The first and the second power amplifying paths receive a first and a second input signals respectively. The first selection circuit selects one of the first matching circuits according to a frequency band of the first input signal to perform a first matching process to generate a first output signal. The second selection circuit selects one of the second matching circuits according to a frequency band of the second input signal to perform a second matching process to generate a second output signal. The antenna is coupled to the power amplifier to transmit the first and/or the second output signals.
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