POWER AMPLIFIER AND POWER AMPLIFICATION METHOD

摘要

A power amplifier according to the present invention comprises: a branching unit that branches an input signal into a plurality of amplitude component signals according to the amplitude of the input signal; a plurality of switch mode power amplifiers that amplify each of the plurality of amplitude component signals branched by the branching unit; and a synthesizer that synthesizes the signals amplified by each of the plurality of switch mode power amplifiers.