Patent · US Expired

Surface wave filter for asymmetrical/symmetrical and symmetrical/symmetrical operating mode

US6081172A · kind A · utility

18Cited by

9References

5Claims

0Family size

Assignee

Siemens Matsushita Components GmbH & Co. KG · DE

Inventors

Georg Strauss · Lechenich, DE
Josef Bauregger · Hersbruck, DE

Key dates

Filing date	Feb 25, 1999
Grant date	Jun 27, 2000
Priority date	—
Expiry date	Feb 25, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/6483
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Surface wave filter for asymmetrical/symmetrical and symmetrical/symmetrical operating mode, with interdigital output transformers (IDT2, IDT4) connected in series.

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