发明名称 |
Surface acoustic wave filter |
摘要 |
<p>To realizing a filter which is capable of properly controlling the passband, and the attenuation pole of a surface acoustic wave filter, a surface acoustic wave filter connected in a ladder type with the surface acoustic wave resonators 104, 105 has an element 106 which changes in capacity by voltage to be impressed and is connected in series with a resonator 105 connected in parallel to the signal line 100. <IMAGE></p> |
申请公布号 |
EP0732805(A2) |
申请公布日期 |
1996.09.18 |
申请号 |
EP19960103673 |
申请日期 |
1996.03.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAGUCHI, YUTAKA;EDA, KAZUO;ONISHI, KEIJI;SEKI, SHUNICHI |
分类号 |
H03H9/64;(IPC1-7):H03H9/64 |
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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