Patent ID: 8594589
Filing Date: 2013-11-26
Classification: H03F

Abstract:
1. A power amplifier comprising: a signal source control unit which generates, from an input signal containing an amplitude modulated component and a phase modulated component, an amplitude signal serving as the amplitude modulated component and a pulse modulated signal based on the amplitude signal, outputs the amplitude signal and the pulse modulated signal, and outputs a transmission signal obtained by superposing the input signal on a carrier; a delay adjustment unit which is connected to said signal source control unit, and synchronizes the amplitude signal, pulse modulated signal, and transmission signal output from said signal source control unit with each other; a voltage signal generation unit which is connected to said delay adjustment unit, and outputs a voltage signal corresponding to the amplitude signal synchronized with the transmission signal; a current signal generation unit which is connected to said delay adjustment unit, and outputs a current signal corresponding to the pulse modulated signal synchronized with the transmission signal; and a transmission signal amplification unit which is connected to said delay adjustment unit, said voltage signal generation unit, and said current signal generation unit, amplifies the transmission signal, and outputs a transmission signal obtained by modulating an amplitude of the amplified transmission signal based on the voltage signal and the current signal.