发明名称 |
Surface acoustic wave device |
摘要 |
A surface acoustic wave device which can generate surface acoustic waves in at least two directions. The device includes a piezoelectric layer, an elastic substrate and an electrode layer which includes two arrays 23 and 24 of linear electrodes with gap regions 25 located between the electrodes. Alternatively, the electrode layer may be patterned as an array of concentric annular strips for the generation of annular surface acoustic waves.
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申请公布号 |
US2004183397(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
US20030296412 |
申请日期 |
2003.09.22 |
申请人 |
KAM CHAN HIN;LAM YEE LOY;ZHOU YAN;CHENG SHIDE;GAN WOON SIONG |
发明人 |
KAM CHAN HIN;LAM YEE LOY;ZHOU YAN;CHENG SHIDE;GAN WOON SIONG |
分类号 |
H03H9/02;H03H9/145;H03H9/25;(IPC1-7):H03H9/145 |
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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