Predistortion manner and the device which raise the electricity usefulness of the power amplifier in radio digital communication application

摘要

The present invention concerns the field of POWER amplifiers and in particular the enhancement of the performance of the amplifier by a feedback loop acting ON the input signal. We present a method for linearizing a POWER amplifier circuit having as input signal a digital base-band input signal, (x), a POWER output signal 8z), a POWER amplifier (PA) and a linearizer module (LM).