发明名称 |
SURFACE ACOUSTIC WAVE FILTER DEVICE |
摘要 |
A surface acoustic wave filter device uses a Rayleigh wave as a main mode, and includes a ladder type surface acoustic wave filter unit. A thickness of a dielectric layer in a surface acoustic wave resonator configuring a series arm resonator is different from thickness of a dielectric layer in a surface acoustic wave resonator configuring a parallel arm resonator. A propagation orientation of a surface acoustic wave in the surface acoustic wave resonator configuring the series arm resonator is different from a propagation orientation of a surface acoustic wave in the surface acoustic wave resonator configuring the parallel arm resonator. |
申请公布号 |
US2013300519(A1) |
申请公布日期 |
2013.11.14 |
申请号 |
US201313943963 |
申请日期 |
2013.07.17 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
TAMASAKI DAISUKE;UESAKA KENICHI |
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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