Patent ID: 9257948
Filing Date: 2016-02-09
CPC Classification: H03F

Claim Text:
1. A high efficiency power amplifier comprising: a transistor configured to amplify an input power which contains a fundamental wave power component having a base angular frequency in current and voltage, and output an output power and an output power processing circuit section connected as a rear stage of the transistor wherein the output power processing circuit section comprises: an output matching circuit section configured to carry out impedance matching to the fundamental wave power component of the output power; and an output harmonic processing circuit section configured to carry out a reactive power control as a control to a reactive power of a plurality of harmonic power components respectively having a plurality of harmonic angular frequencies which are integral multiples of the base angular frequency of the output power, and wherein the output harmonic processing circuit section is configured to realize the reactive power control to at least one of the plurality of harmonic power components by orthogonalizing the phases of the current and voltage in the output power, wherein the output harmonic processing circuit section comprises: a phase adjusting circuit section configured to realize the reactive power control to said at least one harmonic power component by forming a short-circuit to said at least one harmonic power component.