Patent ID: 9300265
Filing Date: 2016-03-29
CPC Classification: H03F,H03G

Claim Text:
1. A power amplifier, comprising: a first power amplifying path to receive a first input signal within a first frequency range, wherein the first input signal is further within one of a plurality of first frequency sub-bands of the first frequency range; a plurality of first matching circuits each comprising a first circuit structure and a first matching parameter corresponding to one of the first frequency sub-bands; a first selection circuit coupled between the first power amplifying path and the first matching circuits to select one of the first matching circuits according to a frequency band where the first input signal is located therein to perform a first matching process on the first input signal to generate a first output signal; a second power amplifying path to receive a second input signal within a second frequency range, wherein the second input signal is further within one of a plurality of second frequency sub-bands of the second frequency range, and frequencies of the second frequency range are higher than those of the first frequency range; a plurality of second matching circuits each comprising a second circuit structure and a second matching parameter corresponding to one of the second frequency sub-bands; and a second selection circuit coupled between the second power amplifying path and the second matching circuits to select one of the second matching circuits according to the frequency band where the second input signal is located therein to perform a second matching process on the second input signal to generate a second output signal.