发明名称 |
Surface acoustic wave filter |
摘要 |
A SAW filter includes multiple SAW resonators. The multiple SAW resonators, which are connected in series, are connected any one of between a signal input terminal and a ground that is the closest thereto and between a signal output terminal and another ground that is the closest thereto. The SAW resonators have substantially equal electrostatic capacitances. It is thus possible to protect the SAW resonators without providing a sacrificial electrode for electrostatic breakdown, and thereby possible to configure the SAW filter having a high reliability against the electrostatic discharge.
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申请公布号 |
US7388456(B2) |
申请公布日期 |
2008.06.17 |
申请号 |
US20040014164 |
申请日期 |
2004.12.17 |
申请人 |
FUJITSU MEDIA DEVICES LIMITED |
发明人 |
FURUSATO HIROYUKI;KAWACHI OSAMU |
分类号 |
H03H9/64;H03H9/00;H03H9/145 |
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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