Patent ID: 7450912

Claim:
A transmitter comprising: a high frequency power amplifier; modulation signal generating means for generating a modulation signal; distortion compensation arithmetic processing means for performing on said modulation signal, in advance, arithmetic processing for canceling out nonlinear distortion to be caused by said high frequency power amplifier; amplitude extracting means for extracting an amplitude component from an arithmetically operated signal outputted from said distortion compensation arithmetic processing means; and DC converting means for performing DC conversion on the amplitude component extracted by said amplitude extracting means; wherein the arithmetically operated signal outputted from said distortion compensation arithmetic processing means is inputted to a high frequency input terminal of said high frequency power amplifier, while the amplitude component having undergone the DC conversion in said DC converting means is inputted to a power supply terminal of said high frequency power amplifier so that a modulated wave is outputted from said high frequency power amplifier.