Patent ID: 7514995

Claim:
A power amplifier system, comprising: at least one main power amplifier; a standby power amplifier; an input switching module, including at least one input switch circuit which is connected to an input of the at least one main power amplifier and an input of the standby power amplifier, respectively; and the at least one input switch circuit comprises: a first group of transmission lines; and a first group of switch components, configured to select a plurality of transmission lines of the first group of transmission lines to enable an input signal to be inputted to the at least one main power amplifier and/or the standby power amplifier through the plurality of transmission lines of the first group of transmission lines; an output switching module, including at least one output switch circuit which is connected to an output of the at least one main power amplifier and an output of the standby power amplifier, respectively; and the at least one output switch circuit comprises: a second group of transmission lines; and a second group of switch components, configured to select a plurality of transmission lines of the second group of transmission lines to enable the input signal amplified by the main power amplifier and/or the standby power amplifier to be outputted through the plurality of transmission lines of the second group of transmission lines; wherein each switch component connects to a corresponding transmission line in parallel.