发明授权
- 专利标题： Elastic surface wave device
- 专利标题（中）： 弹性表面波装置
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申请号： US153238申请日： 1980-05-27
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公开(公告)号： US4334167A公开(公告)日： 1982-06-08
- 发明人: Shoichi Minagawa , Takeshi Okamoto
- 申请人： Shoichi Minagawa , Takeshi Okamoto
- 申请人地址： JPX Tokyo
- 专利权人： Clarion Co., Ltd.
- 当前专利权人： Clarion Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-64923 19790528
- 主分类号： H03H9/25
- IPC分类号： H03H9/25 ; H03F13/00 ; H03H3/08 ; H03H9/02 ; H03H9/72 ; H01L41/08
摘要：
An elastic surface wave device having an input electrode, a pump electrode and an output electrode provided on a body of the device. The output electrode is juxtaposed with the input electrode on the body of the device on the same side with reference to the pump electrode and a multistrip coupler is provided between the pump electrode and the input and output electrodes so as to output, through the output electrode, a backward wave signal from the pump electrode.