Invention Grant
- Patent Title: Radio frequency system with tunable filters including tunable filter with mutually coupled inductors
-
Application No.: US17410931Application Date: 2021-08-24
-
Publication No.: US11722163B2Publication Date: 2023-08-08
- Inventor: Fei Jia , Joshua Kawika Ellis , Kun Chen , Shayan Farahvash , Haisu Ju , Haibo Cao
- Applicant: Skyworks Solutions, Inc.
- Applicant Address: US CA Irvine
- Assignee: Skyworks Solutions, Inc.
- Current Assignee: Skyworks Solutions, Inc.
- Current Assignee Address: US CA Irvine
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H04B1/10
- IPC: H04B1/10 ; H03F3/24 ; H03H7/01 ; H04M1/02

Abstract:
Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.
Public/Granted literature
- US11824569B2 Radio frequency system with tunable filters including tunable filter with mutually coupled inductors Public/Granted day:2023-11-21
Information query