DIGITAL POWER AMPLIFYING DEVICE CAPABLE OF REDUCING THE CONSUMED CURRENTS OF A POLAR TRANSMITTER BY DIGITALIZING AN RF POWER AMPLIFIER AND A POLAR TRANSMITTER USING THE SAME

摘要

PURPOSE: A digital power amplifying device and a polar transmitter using the same are provided to compensate for output of an RF power amplifier using a separate feedback unit.;CONSTITUTION: A polar converting unit(102) converts an input signal into an amplitude information signal and a phase information signal. A phase modulating unit(106) up-modulates the phase information signal. The phase modulating unit outputs the modulated phase information signal. A digital power amplifying unit(108) generates an output signal which has the amplitude corresponding to the integer component of the amplitude information signal which is corrected by a correction value.;COPYRIGHT KIPO 2012