公开(公告)号：US20210328606A1

公开(公告)日：2021-10-21

申请号：US17360247

申请日：2021-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Keji Cui ,  Di Li ,  Lei Lu

IPC: H04B1/04 ,  H04B1/00

Abstract: A multi-band radio frequency front-end device, a multi-band receiver, and a multi-band transmitter, the multi-band radio frequency front-end device including a first radio frequency front-end circuit, where the first radio frequency front-end circuit works on a first band, a second radio frequency front-end circuit, where the second radio frequency front-end circuit works on a second band, a first input/output matching network, and a second input/output matching network, where routing of the first input/output matching network and routing of the second input/output matching network on a layout are annular and nested.