DISTORTION COMPENSATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a distortion compensation device which is high in distortion compensating capability. SOLUTION: A signal amplified by a main amplifier M1 among input signals passing through the first passage is branched by a branching device C2 and reaches a composing device C2 of the second passage to be the first distortion component. This first distortion component is branched to the side of the second passage and the side of the third passage by a branching device C5. A signal amplified by an amplifier M2 among the first distortion component passing through the side of the second passage is branched by a branching device C6 and reaches a composing device C7 on the side of the third passage to be the second distortion component. The second distortion component is amplified by a sub-amplifier S1 and then reaches a composing device C8. Then, by composing it with the first distortion component, the third distortion component is obtained. After all, a signal from which distortion components are removed double is outputted from the composing device C8.