发明名称 |
Acoustic wave device employing reflective elements for confining elastic energy |
摘要 |
An acoustic wave device includes electrodes carried on a surface of a piezoelectric material and an array of reflective obstacles such that elastic energy resulting from a piezoelectric effect is preferentially directed along a primary wave propagation path. The array of reflective obstacles are positioned generally parallel to the surface of the piezoelectric material and redirect acoustic waves typically reflected in other than a desirable direction to along a desired direction generally along the primary propagation path. The obstacles improve performance for SAW and BAW devices by effecting reflected energy and suppressing spurious modes.
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申请公布号 |
US7939987(B1) |
申请公布日期 |
2011.05.10 |
申请号 |
US20080256494 |
申请日期 |
2008.10.23 |
申请人 |
TRIQUINT SEMICONDUCTOR, INC. |
发明人 |
SOLAL MARC;AIGNER ROBERT;GRATIER JULIEN;KOOK TAEHO;ABBOTT BENJAMIN P. |
分类号 |
H03H9/145;H03H9/25 |
主分类号 |
H03H9/145 |
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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