Patent · US Active

DMS-filter with connected resonators

US7999636B2 · kind B2 · utility

2Cited by

12References

14Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Thomas Bauer · Schrobenhausen, DE
Franz Kubat · Munich, DE

Key dates

Filing date	Mar 8, 2007
Grant date	Aug 16, 2011
Priority date	—
Expiry date	Oct 22, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/0071
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A surface acoustic wave filter arrangement is described herein. The surface acoustic wave filter arrangement includes a first gate configured to operate symmetrically or asymmetrically, and a second gate configured to operate symmetrically. The filter arrangement also includes a double-mode surface acoustic wave (DMS) filter structure including an input connected to the first gate, and an output. The output includes a terminal pair that includes two symmetrical terminals configured to operate symmetrically. Each of the two symmetrical terminals of the terminal pair is electrically connected at the output of the DMS filter structure to a cascaded resonator.

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