Patent ID: 8798197

Claim:
A distortion compensation amplifier device for compensating for distortion of a transmission signal generated by amplifying the transmission signal and for outputting the compensated transmission signal, comprising: a storage unit that stores therein distortion compensation coefficients; a processor that performs distortion compensation processing on the transmission signal by using one of the distortion compensation coefficients; and an amplifier that amplifies the transmission signal that has been subjected to the distortion compensation processing; wherein the processor calculates an average value of the distortion compensation coefficients stored in the storage unit, and calculates the distortion compensation coefficient on the basis of the transmission signal, and the average value; wherein the distortion compensation coefficients include amplitude distortion compensation coefficients for compensating amplitude components of the transmission signal and phase distortion compensation coefficients for compensating phase components of the transmission signal, and the processor further calculates an average value of the phase distortion compensation coefficients.