发明名称 |
Surface acoustic wave filter and duplexer including the same |
摘要 |
A surface acoustic wave filter includes: an input interdigital transducer and an output interdigital transducer that are formed on a piezoelectric substrate; a capacitance that is provided between the input terminal of the input interdigital transducer and the output terminal of the output interdigital transducer; a first common ground terminal that connects the ground terminal of the input interdigital transducer and the ground terminal of the output interdigital transducer; and an inductance that is provided between the first common ground terminal and a ground.
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申请公布号 |
US7154359(B2) |
申请公布日期 |
2006.12.26 |
申请号 |
US20040849151 |
申请日期 |
2004.05.20 |
申请人 |
FUJITSU LIMITED |
发明人 |
INOUE SHOGO;TSUTSUMI JUN;MATSUDA TAKASHI;UEDA MASANORI |
分类号 |
H01L41/09;H03H9/64;H03H7/07;H03H9/10;H03H9/145;H03H9/25;H03H9/72 |
主分类号 |
H01L41/09 |
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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