Analysis of SAW Scattering with Discontinuous Periodic Gratings Using Travelling Wave Excitation and Hierarchical Cascading Technique.

Yulin Huang,Jingfu Bao,Xinyi Li,Benfeng Zhang,Luyan Qiu,Tatsuya Omori,Ken-Ya Hashimoto

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control（2019）

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摘要

This paper proposes a technique to analyze surface acoustic wave (SAW) scattering at discontinuity in grating structures using the hierarchical cascading technique. The traveling wave excitation is applied to generate a specific SAW mode. Then the displacement distribution is obtained for the passive regions. The incident, reflected, and transmitted components are selectively evaluated by the Four...

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关键词

Surface acoustic waves,Gratings,Scattering,Damping,Finite element analysis,Electrodes,Couplings

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