Adaptively controlled pre-distortion circuits for RF power amplifiers
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United States of America Patent
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Apr 18, 2017
Grant Date -
Mar 24, 2016
app pub date -
Dec 7, 2015
filing date -
Jan 28, 2014
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Abstract
A system includes a crest-factor reduction circuit, a signal analyzer, and a pre-distortion circuit. The crest-factor reduction circuit reduces a crest factor of a baseband signal and generates a feedforward signal. The signal analyzer generates parameters based on the feedforward signal and an output signal from a power amplifier. The pre-distortion circuit generates a pre-distorted baseband signal based on the parameters for input to the power amplifier.
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