Patent · US Active

SAW filter circuit having improved ESD resistance

US9035726B2 · kind B2 · utility

0Cited by

7References

18Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Ralf Thomas · Munich, DE
Franz Kubat · Munich, DE
Andreas Detlefsen · Eichenau, DE
Markus Hauser · Feldafing, DE

Key dates

Filing date	Jul 12, 2010
Grant date	May 19, 2015
Priority date	—
Expiry date	Aug 5, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/6433
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A SAW filter circuit having improved ESD resistance is specified, in which a series interconnection composed of SAW resonators is interconnected between a first signal port and a dual-mode SAW filter port. The static capacitance of the series interconnection is at most four times the static capacitance of the dual-mode SAW filter transducers interconnected therewith.

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