发明授权
- 专利标题： Surface acoustic wave resonator and surface acoustic wave filter
- 专利标题（中）： 表面声波谐振器和表面声波滤波器
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申请号： US10316089申请日： 2002-12-11
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公开(公告)号： US06946931B2公开(公告)日： 2005-09-20
- 发明人: Shogo Inoue , Jun Tsutsumi , Takashi Matsuda , Osamu Ikata
- 申请人： Shogo Inoue , Jun Tsutsumi , Takashi Matsuda , Osamu Ikata
- 申请人地址： JP Kawasaki JP Yokohama
- 专利权人： Fujitsu Limited,Fujistu Media Devices Limited
- 当前专利权人： Fujitsu Limited,Fujistu Media Devices Limited
- 当前专利权人地址： JP Kawasaki JP Yokohama
- 代理机构： Arent Fox PLLC
- 优先权： JP2001-390707 20011221
- 主分类号： H03H9/145
- IPC分类号： H03H9/145 ; H03H9/64 ; H03H9/25
摘要：
A surface acoustic wave resonator includes a piezoelectric substrate, and a SAW resonator having an interdigital transducer. The interdigital transducer satisfies 0.15L≦W≦0.45L where W is the total of widths of all electrode fingers that form the interdigital transducer, and L is a length of the said interdigital transducer in a direction of SAW propagation.
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