发明授权
- 专利标题： Surface acoustic wave filter
- 专利标题（中）： 表面声波滤波器
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申请号： US10167853申请日： 2002-06-12
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公开(公告)号： US06700460B2公开(公告)日： 2004-03-02
- 发明人: Yuichi Takamine
- 申请人： Yuichi Takamine
- 优先权： JP2001-177329 20010612; JP2002-114934 20020417
- 主分类号： H03H964
- IPC分类号： H03H964
摘要：
A longitudinally-coupled resonator mode SAW filter portion having at least two interdigital transducers (IDTs) is disposed on a piezoelectric substrate. At least one SAW resonator is electrically connected in parallel with the SAW filter portion such that the at least one SAW resonator is disposed between an input terminal or an output terminal and the SAW filter portion. The resonance point of the SAW resonator is disposed in the pass band of the SAW filter portion.
公开/授权文献
- US20020190816A1 Surface acoustic wave filter 公开/授权日：2002-12-19
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