Patent · US Active

Electroacoustic bandpass filter having smoothed insertion loss

US9247351B2 · kind B2 · utility

1Cited by

3References

16Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Andreas Detlefsen · Eichenau, DE
Mohamed Nizar Mellouli · Munich, DE

Key dates

Filing date	Oct 17, 2013
Grant date	Jan 26, 2016
Priority date	—
Expiry date	Oct 17, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/14594
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A bandpass filter operates with electroacoustically active components. The bandpass filter includes a first transducer segment having a spike in the insertion loss at a first frequency f1 and a second transducer segment having a spike in the insertion loss at a second frequency f2≠f1. The frequencies f1 and f2 are chosen such that the insertion loss is smoothed.

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