Systems and methods for digital predistortion to mitigate power amplifier bias circuit effects
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United States of America Patent
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Mar 26, 2024
Grant Date -
Feb 16, 2023
app pub date -
Aug 16, 2021
filing date -
Aug 16, 2021
priority date (Note) -
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Abstract
A digital predistortion (DPD) system includes an input configured to receive an input signal. In some examples, a first signal path configured to generate a first signal based on the input signal. In some examples, an error model provider configured to generate an error model signal modeled after a gate bias error voltage associated with the DPD system. In some examples, a first combiner configured to combine the first signal and the error model signal to generate a first intermediate signal, and the DPD system generates an output signal based at least on the first intermediate signal.
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