发明授权
- 专利标题： Surface acoustic wave device
- 专利标题（中）： 表面声波装置
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申请号： US211905申请日： 1980-12-01
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公开(公告)号： US4396851A公开(公告)日： 1983-08-02
- 发明人: Kiyoharu Kishimoto , Hitoshi Yanagihara , Katashi Hazama
- 申请人： Kiyoharu Kishimoto , Hitoshi Yanagihara , Katashi Hazama
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-154390 19791130
- 主分类号： H03H3/08
- IPC分类号： H03H3/08 ; H03H9/145 ; H01L41/00
摘要：
A surface acoustic wave device is provided with plural sets of input and output transducers arranged on a piezoelectric substrate with the input transducers and the output transducers being connected electrically in parallel, respectively. In order to minimize a loss which occurs due to the parallel connections of the input and output transducers, aperture dimensions of either the input transducers or the output transducers are selected such that static capacitances of the respective transducers are equal.
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