Patent ID: 8995565
Filing Date: 2015-03-31
Classification: H03G,H04B

Abstract:
1. A distortion control device comprising: a variable gain amplifier which amplifies a high-frequency signal generated from a baseband signal that is output from a digital baseband unit according to a control signal and outputs the amplified signal to a power amplifier which amplifies the amplified signal output from the variable gain amplifier to a predetermined transmission power; a waveform analyzing unit which calculates an estimated value of a back-off value by analyzing a waveform of the baseband signal that is output from the digital baseband unit; and a control unit which generates the control signal by subtracting based on the estimated value calculated by the waveform analyzing unit from at least a maximum value of a gain control signal that is output from the digital baseband unit and outputs the control signal to the variable gain amplifier.