发明授权
- 专利标题： Plural saw oscillators producing combined high frequency output
- 专利标题（中）： 产生组合高频输出的多个锯片振荡器
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申请号： US161114申请日： 1993-12-02
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公开(公告)号： US5373260A公开(公告)日： 1994-12-13
- 发明人: Akira Kato
- 申请人： Akira Kato
- 申请人地址： JPX Kyoto
- 专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人地址： JPX Kyoto
- 优先权： JPX4-350281 19921202
- 主分类号： H03B5/30
- IPC分类号： H03B5/30 ; H03B5/12 ; H03B5/32 ; H03B19/14 ; H03B27/00 ; H03H9/68 ; H03B5/36
摘要：
A surface acoustic wave resonator has a plural number N of interdigital transducers arranged in a sequence on a piezoelectric substrate to generate N surface acoustic wave signals with a predetermined frequency f.sub.0 and having phase difference of 2.pi./N radian therebetween. Oscillation circuits are individually connected to the N interdigital transducers and generate N oscillation signals with the same frequency f.sub.0 and having phase difference of 2.pi./N radian therebetween. These oscillation signals are multiplied together to generate a signal with frequency N times the predetermined frequency f.sub.0.
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