- Patent Title: Reducing intermodulation distortion in a radio frequency circuit
-
Application No.: US15696241Application Date: 2017-09-06
-
Publication No.: US10560867B2Publication Date: 2020-02-11
- Inventor: Nadim Khlat , Marcus Granger-Jones
- Applicant: Qorvo US, Inc.
- Applicant Address: US NC Greensboro
- Assignee: Qorvo US, Inc.
- Current Assignee: Qorvo US, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H04B1/00
- IPC: H04B1/00 ; H04W28/04 ; H04B1/44

Abstract:
Embodiments of the disclosure relate to reducing intermodulation distortion (IMD) in a radio frequency (RF) circuit. In examples discussed herein, the RF circuit operates in an uplink carrier aggregation (ULCA) mode to transmit an RF uplink signal simultaneously in a first uplink band and a second transmit band. However, nonlinear components in the RF circuit can create an IMD product(s) that can fall into a downlink band of an RF downlink signal, thus impairing a receive filter's ability to receive the RF downlink signal in the downlink band. The receive filter can be opportunistically reconfigured to form an IMD shunt path to attenuate the IMD product. By reconfiguring the receiver filter to form the IMD shunt path, it is possible to suppress the IMD product in the RF uplink signal, thus leading to an improved desense performance in the ULCA mode without incurring additional cost and/or battery life penalty.
Public/Granted literature
- US20180192320A1 REDUCING INTERMODULATION DISTORTION IN A RADIO FREQUENCY CIRCUIT Public/Granted day:2018-07-05
Information query