POWER AMPLIFIER, LOW DISTORTION POWER AMPLIFIER, MULTISTAGE AMPLIFIER, CONTROL METHOD FOR POWER AMPLIFIER, TRANSMITTING CIRCUIT AND RADIO COMMUNICATION EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a power amplifier with which the symmetry of distortion to appear in amplifier output can be controlled.;SOLUTION: This device is provided with an input terminal 101 for inputting an input signal from the outside, a transistor 104 for amplifying the input signal, an output terminal 107 for outputting an output signal from the transistor 104 to the outside, and a control circuit 108 for performing control so that the frequency distribution of a distortion component in the signal to appear on the output terminal can become symmetric or asymmetric to a carrier frequency.;COPYRIGHT: (C)2003,JPO