HF broadband amplifier comprising a system for reducing distortion and associated distortion reduction method

摘要

The amplifier (100) has an error correction device including a phase difference adjusting unit (104) adjusting a phase difference close to 0 degree between a control signal (P1) and a residual signal of the control signal output from the amplifier. Another phase difference adjusting unit (105) adjusts a phase difference close to 180 degree between another control signal (P2) and another residual signal of the latter control signal output from the amplifier to provide a high frequency demodulator (106) by controlling a cancellation loop (103). An independent claim is also included for a method for reducing distortion of a high frequency broadband amplifier.