Patent · US Active

Vertically coupled SAW resonators

US12316304B2 · kind B2 · utility

0Cited by

2References

30Claims

0Family size

Assignee

RF360 Singapore Pte. Ltd. · SG

Inventors

Stefan Ammann · Winterthur, CH
Matthias PERNPEINTNER · Grafing, DE
Manuel Hofer · Wolfsberg, AT
Stefan Leopold Hatzl

Key dates

Filing date	Dec 21, 2022
Grant date	May 27, 2025
Priority date	—
Expiry date	Jul 28, 2043

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/25
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry implementing filters with electroacoustic vertical coupling. One aspect is a filter comprising a piezoelectric substrate having a first piezoelectric surface and a second piezoelectric surface opposite the first piezoelectric surface. The filter further comprises a first electroacoustic resonator comprising a first interdigital transducer (IDT) disposed on or over the first piezoelectric surface of the piezoelectric substrate and a second electroacoustic resonator comprising a second IDT disposed on or over the second piezoelectric surface of the piezoelectric substrate. The second electroacoustic resonator is electrically coupled to the first electroacoustic resonator in series or in parallel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.