TRANSMITTING APPARATUS, COMMUNICATION DEVICE, AND MOBILE WIRELESS UNIT

摘要

Transmission apparatus capable of reducing distortion of the vector modulation wave that is the transmission output to a sufficiently small level is provided. An amplifying section (105) generates a vector modulation wave based on an amplitude component modulation signal and a phase modulation wave. A synchronous demodulating section (107) detects the vector modulation wave, generates a synchronous demodulation signal, and sends this to a band filtering section (108). The band filtering section (108) extracts a signal of the frequency component of the distortion from a synchronous demodulation signal outputted by the synchronous demodulating section (107). A controlling section (109) then refers to the distortion component signal extracted by the band filtering section (108), controls a delay time adjusting section (103) in such a manner that the signal level of the distortion component becomes small, adjusts a delay time difference between the amplitude component modulation signal and the phase component modulation signal, and reduces distortion of the modulation wave.