Coupled mode analysis of saw transducers
Coupled mode analysis of saw transducers
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DOI：
10.1016/0020-7225(91)90142-p
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发表时间：
1991
影响因子：
6.6
通讯作者：
E. Akçakaya
中科院分区：
文献类型：
--
作者：
E. Akçakaya
得到了声表面波换能器的耦合模方程。利用这些方程，以边界条件为驱动，得到了换能器的多端元件模型。这种多端模型使“撕裂和重构技术”在分析包括叉指换能器和单相单向换能器的SAW滤波器中成为可能。本文所建立的模型也适用于分布反馈谐振器的分析，该模型可用于耦合系数沿传播方向沿着缓慢变化的换能器。
Coupled mode equations have been obtained for SAW transducers. Using these equations and regarding some boundary conditions as drivers; a multi-terminal component model for transducer is obtained. This multi-terminal model makes it possible to use “Tearing and Reconstruction Technique” in the analysis of SAW filters involving interdigital transducers and single phase unidirectional transducers. The model developed in this work, is also applied in the analysis of Distributed Feedback Resonators, the model can be used for the transducer in which coupling coefficient shows slow variation along the propagation direction.