Patent · US Active

Acoustic-wave-based filter for wideband applications

US11916530B2 · kind B2 · utility

0Cited by

2References

26Claims

0Family size

Assignee

RF360 Singapore Pte. Ltd. · SG

Inventors

Georgiy Sevskiy · Munich, DE
Mykola Shevelov · Munich, DE
Bohdan Bravichev · Munich, DE
Mathieu Pijolat · Grenoble, FR
Stefan Freisleben · Neubiberg, DE
Patric Heide · Vaterstetten, DE

Key dates

Filing date	Dec 6, 2021
Grant date	Feb 27, 2024
Priority date	—
Expiry date	Apr 5, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/542
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Certain aspects of the present disclosure provide a filter circuit and techniques for filtering using the filter circuit. The filter circuit generally includes a first filter stage having a first acoustic wave resonator coupled in a series path between a first port of the filter circuit and a second port of the filter circuit, a first inductor-capacitor (LC) tank circuit, a first capacitor coupled between a first terminal of the first acoustic wave resonator and the first LC tank circuit, the first LC tank circuit being coupled between the first capacitor and a reference potential node, and a second capacitor coupled between a second terminal of the first acoustic wave resonator and the first LC tank circuit. In some aspects, the filter circuit includes one or more other filter stages coupled to the first filter stage.

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