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：US20150288347A1

公开(公告)日：2015-10-08

申请号：US14438598

申请日：2013-09-27

Applicant: EPCOS AG

Inventor： Holger Emrich ,  Clemens Ruppel ,  Martin Störkle ,  Werner Ruile ,  Thomas Finteis ,  Tilo Gärtner ,  Ingo Bleyl ,  Markus Mayer

IPC: H03H9/64 ,  H03H9/54

CPC classification number: H03H9/643 ,  H03H9/02708 ,  H03H9/02716 ,  H03H9/02795 ,  H03H9/14558 ,  H03H9/54 ,  H03H9/64 ,  H03H9/6406

Abstract: An electroacoustic filter has improved low-pass characteristics. The filter includes a first electroacoustic converter, an electroacoustic element and a grid structure between the converter and the element. The grid structure is acoustically active in one frequency range that lies above the acoustically active frequency range of the first electroacoustic converter.

Abstract translation: 电声滤波器具有改进的低通特性。 滤波器包括第一电声转换器，电声元件和转换器与元件之间的格栅结构。 栅极结构在一个频率范围内具有声学有效性，该频率范围位于第一电声转换器的声学有效频率范围之上。

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.