公开(公告)号：US20230216535A1

公开(公告)日：2023-07-06

申请号：US17927582

申请日：2020-07-14

Applicant: QUALCOMM Incorporated

Inventor： Shaofeng WANG ,  Rongliang YANG ,  Devdutt PATNAIK ,  Rohit TRIPATHI ,  Francis Ming-Meng NGAI

IPC: H04B1/525

CPC classification number: H04B1/525

Abstract: In one implementation, a wireless communication device includes a first transceiver configured to generate a transmit signal and a band pass filter (BPF) select circuit configured to filter the transmit signal by a one of a first BPF with a relatively high-frequency passband or a second BPF with a relatively low-frequency passband. The wireless communication device includes a second transceiver configured to receive a received signal filtered by the other one of the first or second BPF. Having the transmit and received signals filtered by two different passband filters improves the isolation between the transmitter and receiver. Another implementation configures the first transceiver to include its own set of first and second BPFs, and the second transceiver to also include its own first and second BPFs.