发明名称 |
Surface acoustic wave filter device |
摘要 |
A small-sized surface acoustic wave filter device having favorable filter characteristics includes a transmission-side surface acoustic wave filter chip including a ladder surface acoustic wave filter unit located on a piezoelectric substrate. The ladder surface acoustic wave filter unit includes a series arm connected between an input pad and an output pad and a plurality of resonators and including at least one first resonator connected to the input pad or the output pad. A die-attach surface is provided with an inductor connected to the first resonator. The inductor is arranged such that at least a portion thereof faces the first resonator and does not face any of the plurality of resonators and other than the first resonator. |
申请公布号 |
US8436697(B2) |
申请公布日期 |
2013.05.07 |
申请号 |
US201213558402 |
申请日期 |
2012.07.26 |
申请人 |
TAKAMINE YUICHI;MURATA MANUFACTURING CO., LTD. |
发明人 |
TAKAMINE YUICHI |
分类号 |
H03H9/72;H03H9/64 |
主分类号 |
H03H9/72 |
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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