Patent · US Active

Electroacoustic transducer having a piezoelectric substrate with electrode fingers divided into four groups

US9590589B2 · kind B2 · utility

0Cited by

11References

10Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Gholamreza DADGAR JAVID · Munich, DE
Thomas Ebner · Braunau am Inn, AT

Key dates

Filing date	Jul 11, 2013
Grant date	Mar 7, 2017
Priority date	—
Expiry date	Jul 17, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH03H9/14505
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An electroacoustic transducer having an alternative finger structure is provided. The number of fingers of a cell of length A is divisible by four. The electrode fingers of the cell are divided into four groups. The distance (Δ2) between the second group and the third group is less than the distance (Δ1) between the first group and the second group and less than the distance (Δ3) between the third group and the fourth group.

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