Circuit and method for compensating for non-linear distortion
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United States of America Patent
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Issued Date -
Sep 19, 2002
app pub date -
Mar 18, 2002
filing date -
Mar 19, 2001
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Abandoned
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Abstract
Compensating for non-linear distortion generated during non-linear high-power amplification in a transmitter after quadrature modulation of a baseband signalby extracting a non-linear distortion component from a non-linearly high-power amplified modulated signal; correcting a phase characteristic such that respective frequency signals in a frequency band of the non-linear distortion component have equal phase delays; quadrature-demodulating the corrected distortion component into a baseband distortion component; and overlapping a phase-inverted distortion component of the quadrature-demodulated baseband distortion component with the baseband signal.
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