发明名称 |
AKUSTISK YTVAGSANORDNING SAMT FORFARANDE FOR TILLVERKNING AV EN SADAN ANORDNING |
摘要 |
An acoustic surface wave device comprising a monocrystalline body of piezoelectric material having a launching and receiving transducer applied to a planar ASW propagation surface. The piezoelectric material and the orientation of the propagation surface and the axial propagation direction relative to the crystal axes are selected to provide zero piezoelectric coupling between the transducers and a longitudinal axial bulk wave and that one of the two shear axial bulk waves that has substantially no component of particle motion perpendicular to said propagation surface. A method of manufacturing the aforesaid ASW device is also disclosed. |
申请公布号 |
SE402393(B) |
申请公布日期 |
1978.06.26 |
申请号 |
SE19740012652 |
申请日期 |
1974.10.09 |
申请人 |
NV * PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
R F * MITCHELL;E * READ;R * STEVENS |
分类号 |
H03H3/08;H03H9/02;H03H9/25;(IPC1-7):03H9/30 |
主分类号 |
H03H3/08 |
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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