公开(公告)号：US20240333319A1

公开(公告)日：2024-10-03

申请号：US18620047

申请日：2024-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hangtian Hou ,  Huayong Jia ,  Xudong Qin

IPC: H04B1/00 ,  H04B1/16

CPC classification number: H04B1/006 ,  H04B1/001 ,  H04B1/1615

Abstract: This application provides a radio frequency front-end circuit, comprising: A first switch group includes a first output end and a second output end, configured to selectively transmit, to the first output end and the second output end, a carrier aggregation signal received from an antenna; a phase-shift filter is coupled to the second output end, and is configured to: perform phase-shifting and filtering on the carrier aggregation signal, and output a phase-shifted filtered signal; a second switch group includes at least one third output end, and each third output end is configured to output the phase-shifted filtered signal; and the at least one third output end is coupled to a second filter and a third filter, and the second filter and the third filter are configured to: separately perform filtering on the phase-shifted filtered signal, and then respectively output the second frequency band signal and the third frequency band signal.