Power amplifier, non-linear distortion correcting method of power amplifier and radio communication device

摘要

The invention intends to supply a power amplifier enable to correct a distortion correctly by linearizer corresponding to each amplifier if plural amplifiers are used at any operation points. A power amplifier according to the invention includes a number of amplifiers connected with multiple stages and a number of linearizers connected with multiple stages and correcting non-linear distortions of the amplifiers. In the invention, a distortion in the amplifier of a former stage is corrected by the linearizer of a later stage.