发明名称 |
Bulk acoustic wave filter |
摘要 |
The invention relates to bulk acoustic wave filters including at least two bulk acoustic wave resonators. Each of these resonators includes at least one first electrode, a piezoelectric layer, and a second electrode. At least two of the bulk acoustic wave resonators have effective resonator surfaces which differ in their surface form and/or surface content. The inventive design of the bulk acoustic wave resonators enables optimal suppression of interference modes without influencing the impedance level of the filter.
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申请公布号 |
US2003227356(A1) |
申请公布日期 |
2003.12.11 |
申请号 |
US20030446984 |
申请日期 |
2003.05.27 |
申请人 |
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发明人 |
AIGNER ROBERT;MARKSTEINER STEPHAN;NESSLER WINFRIED;ELBRECHT LUDER |
分类号 |
H03H9/02;H03H9/58;H03H9/60;(IPC1-7):H03H9/58 |
主分类号 |
H03H9/02 |
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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