Providing an integrated directional coupler in a power amplifier
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United States of America Patent
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Mar 17, 2015
Grant Date -
May 15, 2014
app pub date -
Nov 12, 2012
filing date -
Nov 12, 2012
priority date (Note) -
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Abstract
A power amplifier includes a power amplifier core including a plurality of gain stages to receive a radio frequency (RF) signal and to output an amplified RF signal, an output network coupled to the power amplifier core to receive the amplified RF signal and output a transmit output power signal, and a directional coupler coupled to the output network to obtain a coupled signal proportional to the transmit output power signal. Each of these components can be configured on a single semiconductor die, in an embodiment.
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