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US3996535A Microwave bulk acoustic delay device having two transducers on the same surface and method of making same 失效
具有相同表面上的两个换能器的微波体声声延迟装置及其制造方法

  • 专利标题： Microwave bulk acoustic delay device having two transducers on the same surface and method of making same
  • 专利标题（中）： 具有相同表面上的两个换能器的微波体声声延迟装置及其制造方法
  • 申请号： US594236
    申请日： 1975-07-09
  • 公开(公告)号： US3996535A
    公开(公告)日： 1976-12-07
  • 发明人: Zygmond Turski
  • 申请人： Zygmond Turski
  • 申请人地址： NY New York
  • 专利权人： RCA Corporation
  • 当前专利权人： RCA Corporation
  • 当前专利权人地址： NY New York
  • 主分类号： H03H9/36
  • IPC分类号： H03H9/36 ;  H03H9/30 ;  H01L41/08 ;  H01L41/18 ;  H01L41/22
Microwave bulk acoustic delay device having two transducers on the same surface and method of making same
摘要：
A wafer of lithium niobate metallized on both major surfaces is bonded to a magnesium aluminate spinel bulk acoustic delay line. The lithium niobate layer is divided into two separate electrically and mechanically isolated transducers using ion beam milling. The bulk acoustic delay line has a surface arranged to reflect a propagating acoustic wave generated by one of the divided transducers to the other of the transducers, the one transducer serving as an input and the other as an output. The acoustic delay line is suitable for broad band operation at microwave frequencies with at least 50 db isolation between the two ports.
摘要（中）：

在两个主表面上金属化的铌酸锂晶片被结合到铝酸镁尖晶石体声延迟线。 使用离子束铣削将铌酸锂层分成两个单独的电和机械隔离的换能器。 体声声延迟线具有布置成将由分离换能器中的一个产生的传播声波反射到另一个换能器的表面，一个换能器用作输入，另一个用作输出。 声学延迟线适用于微波频段的宽带操作，两个端口之间至少有50db隔离。

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