Patent · US Active

Electronic component operated with surface acoustic waves

US7969259B2 · kind B2 · utility

1Cited by

10References

11Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Andreas Detlefsen · Eichenau, DE
Peter Kirchhofer · Munich, DE
Dietmar Ritter · Rödental, DE

Key dates

Filing date	Dec 16, 2003
Grant date	Jun 28, 2011
Priority date	—
Expiry date	Jun 6, 2026

Classification

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

Abstract

An apparatus includes a piezoelectric substrate having a signal line with a first electrical port and a second electrical port, and a first partial filter connected in series with a second partial filter. The partial filters are arranged between the electrical ports. The first partial filter includes a first serial transducer and a second serial transducer located in an acoustic path and in series branches of the signal line. The serial transducers are acoustically coupled with one another. The second partial filter includes a coupler transducer and an end-positioned transducer that are located in a double mode surface acoustic wave (DMS) path. The end-positioned transducer is positioned at an end of the signal line.

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