发明名称 |
Acoustic Wave Transducer and Filter Comprising Said Transducer |
摘要 |
A transducer includes an acoustic track in which an acoustic wave can be propagated, the acoustic track having a transversal fundamental mode, the acoustic track being subdivided in a transversal direction into an excitation area and two peripheral areas. The transducer also includes a first outside area and a second outside area bordering the acoustic track such that the acoustic track is arranged in the transversal direction between the first and second outside area. The transducer also includes peripheral areas configured such that the longitudinal phase velocity vRB of the acoustic wave in the respective peripheral area is greater than the longitudinal phase velocity vMB of the wave in the excitation area.
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申请公布号 |
US2008315972(A1) |
申请公布日期 |
2008.12.25 |
申请号 |
US20060158171 |
申请日期 |
2006.12.18 |
申请人 |
MAYER MARKUS;WAGNER KARL CHRISTIAN;BERGMANN ANDREAS |
发明人 |
MAYER MARKUS;WAGNER KARL CHRISTIAN;BERGMANN ANDREAS |
分类号 |
H03H9/64;H03H9/25 |
主分类号 |
H03H9/64 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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