The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Feb. 03, 2023
Skyworks Solutions, Inc., Irvine, CA (US);
Yu Hui, Pleasanton, CA (US);
Yiliu Wang, Irvine, CA (US);
SKYWORKS SOLUTIONS, INC., Irvine, CA (US);
Abstract
A radio frequency duplexer comprises a transmit filter including a first plurality of acoustic wave resonators, and a receive filter including a second plurality of acoustic wave resonators. The transmit filter exhibits a transmit insertion loss curve that partially overlaps with a receive insertion loss curve of the receive filter, a frequency range of the overlap of the transmit insertion loss curve and receive insertion loss curve defining a frequency range of crossover of the duplexer. At least one of the first plurality of acoustic wave resonators or the second plurality of acoustic wave resonators include a structure configured to generate a spurious signal at a frequency within the frequency range of the crossover to reduce an amplitude of an interference signal within the frequency range of the crossover.