公开(公告)号：US20160149553A1

公开(公告)日：2016-05-26

申请号：US14904561

申请日：2013-07-18

Applicant: EPCOS AG

Inventor： Jiman Yoon ,  Markus Mayer ,  Thomas Ebner ,  Ulrike Rösler ,  Werner Ruile

IPC: H03H9/02 ,  H01L41/047

CPC classification number: H03H9/02559 ,  H01L41/047 ,  H03H9/02858 ,  H03H9/02881 ,  H03H9/14532 ,  H03H9/1457

Abstract: An improved electroacoustic transducer with an improved mode profile is provided. The transducer comprises a velocity profile with a periodic structure and an edge structure flanking the periodic structure. The velocity profile also allows to suppress the SH wave mode.

Abstract translation: 提供了一种改进的电声换能器，具有改进的模式轮廓。 换能器包括具有周期性结构的速度分布和在周期性结构侧面的边缘结构。 速度分布也允许抑制SH波模式。

公开(公告)号：US09590589B2

公开(公告)日：2017-03-07

申请号：US14418930

申请日：2013-07-11

Applicant: EPCOS AG

Inventor： Gholamreza Dadgar Javid ,  Thomas Ebner

IPC: H03H9/145 ,  H03H9/64

CPC classification number: H03H9/6406 ,  H03H9/14505

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.

Abstract translation: 提供具有替代手指结构的电声换能器。 长度为A的单元格的手指数可以被四除。 电池的电极指分为四组。 第二组和第三组之间的距离（Δ2）小于第一组和第二组之间的距离（Δ1），并且小于第三组与第四组之间的距离（Δ3）。

公开(公告)号：US20160126928A1

公开(公告)日：2016-05-05

申请号：US14979287

申请日：2015-12-22

Applicant: EPCOS AG

Inventor： Werner Ruile ,  Markus Mayer ,  Ulrike Rösler ,  Markus Hauser ,  Ingo Bleyl ,  Karl-Christian Wagner ,  Wolfgang Sauer ,  Michael Jakob ,  Thomas Ebner ,  Edgar Schmidhammer ,  Stefan Berek ,  Christoph Eggs

IPC: H03H9/25

CPC classification number: H03H9/25 ,  H03H3/08 ,  H03H9/02535 ,  H03H9/02858 ,  H03H9/14532 ,  H03H9/1455 ,  H03H9/1457 ,  Y10T29/42

Abstract: An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.

公开(公告)号：US20150214924A1

公开(公告)日：2015-07-30

申请号：US14418930

申请日：2013-07-11

Applicant: EPCOS AG

Inventor： Javid Gholamreza Dadgar ,  Thomas Ebner

IPC: H03H9/64

CPC classification number: H03H9/6406 ,  H03H9/14505

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.

Abstract translation: 提供具有替代手指结构的电声换能器。 长度为A的单元格的手指数可以被四除。 电池的电极指分为四组。 第二组与第三组之间的距离（＆Dgr; 2）小于第一组与第二组之间的距离（＆Dgr; 1），小于第三组与第四组之间的距离（＆Dgr; 3） 组。