公开(公告)号：US20240048162A1

公开(公告)日：2024-02-08

申请号：US18363321

申请日：2023-08-01

Applicant: QUALCOMM Incorporated

Inventor： Francesco GATTA ,  Balasubramanian RAMACHANDRAN ,  Abhishek Ananthrao KULKARNI ,  Soon-Seng LAU

IPC: H04B1/00 ,  H04B1/04 ,  H04B1/18

CPC classification number: H04B1/0064 ,  H04B1/0475 ,  H04B1/18

Abstract: A system for wireless communications includes a first radio frequency front-end (RFFE) circuit coupled to a first antenna and a second RFFE coupled to a second antenna. The first RFFE circuit includes a first filter having a first passband spanning a first frequency band, a first low-noise amplifier (LNA) coupled to the first filter, and a bypass circuit configured to bypass the first filter, the bypass circuit including an attenuator. The first RFFE also includes a first switching circuit configured to couple the first antenna to the first filter or the bypass circuit. The second RFFE circuit includes a power amplifier, and a second filter coupled between the power amplifier and the second antenna, the second filter having a second passband spanning a second frequency band different than the first frequency band.