Patent ID: 8710927

Claim:
A high-frequency power amplifier that amplifies a high-frequency input signal and outputs a signal having one power selected from a plurality of powers, the high-frequency power amplifier comprising: a first output route that is a circuit, which amplifies the input signal and outputs a signal of a first power; and a second output route that is a circuit, which amplifies the input signal and outputs a signal of a second power, wherein the first output route includes: a first amplifier that amplifies the input signal; a first output matching circuit that is connected to an output node of the first amplifier; and a first switch element that is connected to an output node of the first output matching circuit, and the second output route includes: a second amplifier that amplifies the input signal; and a second switch element that is connected between an output node of the second amplifier and an output node of the first switch element, each of the first switch element and the second switch element comprises a transistor, and a size of the first switch element is larger than a size of the second switch element.