TRANSMITTER CAPABLE OF OFFSETTING A HARMONIC AND AN INTER MODULATION DISTORTION SIGNAL BY USING THE PHASE DIFFERENCE OF A BASEBAND SIGNALS SEPARATED INTO TWO INPUT SIGNALS AND A SIGNAL PROCESSING METHOD THEREOF

摘要

PURPOSE: A transmitter and a signal processing method thereof are provided to obtain high linearity by eliminating the distortion of a radio frequency signal.;CONSTITUTION: A frequency mixer(20-X) generates a first radio frequency signal and a second radio frequency signal based on one among a baseband signal and a plurality of local oscillator signals. A first amplifier(30) amplifies the first radio frequency signal. A second amplifier(35) has a same structure with the structure of the first amplifier. The second amplifier amplifies the second radio frequency signal. A combiner(40) adds up the output signal of the first amplifier and the output signal of the second amplifier. The combiner generates a high frequency signal according to the summing result.;COPYRIGHT KIPO 2010