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公开(公告)号：US20150349748A1
公开(公告)日：2015-12-03
申请号：US14760184
申请日：2013-12-05
Applicant: EPCOS AG
Inventor： Thomas Bauer , Andreas Bergmann
CPC classification number: H03H9/542 , H03H9/568 , H03H9/605 , H03H9/6483
Abstract: A reactance filter can be use branching technology. A series circuit contains a first filter element, a second filter element and a third filter element. Each filter element includes a first impedance element that is connected in series with an impedance element of an adjacent element. Each filter element also includes a second element connected to the first impedance element of that filter. The first and/or second impedance element of each filter element comprises a includes a resonator. Each impedance element has a bandwidth that is expressed by its pole zero distance and each filter element comprises a means for setting the bandwidths of the impedance elements.
Abstract translation: 电抗滤波器可以使用分支技术。 串联电路包括第一滤波器元件，第二滤波器元件和第三滤波器元件。 每个滤波器元件包括与相邻元件的阻抗元件串联连接的第一阻抗元件。 每个过滤器元件还包括连接到该过滤器的第一阻抗元件的第二元件。 每个滤波器元件的第一和/或第二阻抗元件包括一个谐振器。 每个阻抗元件具有由其极零距离表示的带宽，并且每个滤波器元件包括用于设置阻抗元件的带宽的装置。
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公开(公告)号：US20150270824A1
公开(公告)日：2015-09-24
申请号：US14434370
申请日：2013-11-06
Applicant: EPCOS AG
Inventor： Wolfgang Sauer , Thomas Kauschke , Thomas Bauer
CPC classification number: H03H9/02905 , H03H3/02 , H03H3/08 , H03H9/02559 , H03H9/02818 , H03H9/14541 , H03H9/25 , H03H9/725 , Y10T29/42
Abstract: An electroacoustic component is specified in which the disturbing contributions of undesired wave modes are reduced. For this purpose, a component comprises includes a piezo layer, an electrode layer and a separating layer. A main mode and a secondary mode are capable of propagation in the component. The separating layer has an opposite thickness dependence for the frequencies of the main mode and of the secondary mode.
Abstract translation: 规定了一种电声分量，其中不期望的波模的干扰贡献减小。 为此，组件包括压电层，电极层和分离层。 主模式和次模式能够在组件中传播。 分离层对于主模式和次模式的频率具有相反的厚度依赖性。
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