Patent ID: 8872599
Filing Date: 2014-10-28
Classification: H03F,H03H

Abstract:
1. A power synthesis circuit for radio frequency power amplifier, which being connected to an antenna, comprising: a duplexer connected to the antenna; a first matching network and a second matching network respectively connected between signal output ports of a two band radio frequency power amplifier and the duplexer; and a plurality of signal coupling circuits connected to a plurality of two-band signal receiver ports respectively; wherein the first matching network is grounded through a first inductor and a first switching element connected in parallel with the first inductor, and the second matching network is grounded through a second inductor and a second switching element connected in parallel with the second inductor; a part of the plurality signal coupling circuits are connected to the first matching network via a first signal transmission line, and the other part of the plurality signal coupling circuits are connected to the second matching network via a second signal transmission line.