发明名称 |
Surface acoustic wave resonator with withdrawn electrodes and surface acoustic wave ladder filter using same |
摘要 |
A surface acoustic wave resonator including at least one interdigital transducer formed on a piezoelectric substrate, wherein the at least one interdigital transducer includes a predetermined number of interdigitated electrode fingers, at least two electrode fingers among the interdigitated electrode fingers are withdrawn, and the positions of the withdrawal electrode fingers are aperiodic.
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申请公布号 |
US6552632(B2) |
申请公布日期 |
2003.04.22 |
申请号 |
US20010940888 |
申请日期 |
2001.08.29 |
申请人 |
FUJITSU LIMITED;FUJITSU MEDIA DEVICES LIMITED |
发明人 |
INOUE SHOGO;TSUTSUMI JUN;MATSUDA TAKASHI;IKATA OSAMU |
分类号 |
H03H9/145;H03H9/25;H03H9/64;(IPC1-7):H03H9/64 |
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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