发明授权
US06683515B1 Surface-acoustic-wave filter providing outputs with different delay times and communications unit
有权
提供具有不同延迟时间和通信单元的输出的表面声波滤波器
- 专利标题： Surface-acoustic-wave filter providing outputs with different delay times and communications unit
- 专利标题（中）： 提供具有不同延迟时间和通信单元的输出的表面声波滤波器
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申请号： US09666814申请日： 2000-09-21
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公开(公告)号： US06683515B1公开(公告)日： 2004-01-27
- 发明人: Hiroyuki Nakamura , Kenji Monma , Toru Yamada , Kazunori Nishimura
- 申请人： Hiroyuki Nakamura , Kenji Monma , Toru Yamada , Kazunori Nishimura
- 优先权： JPH11-269284 19990922
- 主分类号： H03H964
- IPC分类号： H03H964
摘要：
A surface-acoustic-wave filter has a piezoelectric substrate; and a plurality of transversal surface-acoustic-wave (SAW) filters set on the piezoelectric substrate and respectively having at least two inter-digital transducer (IDT) electrodes for transcieving surface acoustic waves, characterized in that periods for surface acoustic waves to propagate from inputs to outputs of the SAW filters differ in the SAW filters and thereby, timings of outputs from the SAW filters are different from each other.
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