ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,523, issued on Oct. 7, was assigned to Skyworks Solutions Inc. (Irvine, Calif.).
"Crossover reduction for acoustic duplexers by spurious modes" was invented by Yu Hui (Pleasanton, Calif.) and Yiliu Wang (Irvine, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 insertio...