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Finite-Element Analysis of Topographic Waveguides for Acoustic Surface Waves Using Approximate Analytical Solutions for Substrate Region

Masanori KOSHIBA, Masaya OKADA, Michio SUZUKI

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Summary :

An efficient finite-element program utilizing approximate analytical solutions is described for the analysis of topographic waveguides for acoustic surface waves. In this method, the only ridge region is divided into triangular elements, and therefore it is possible to use computer memory more economically. Calculations have been made for the rectangular ridge waveguide, the dovetail ridge waveguide, the truncated knife edge waveguide and the wedge waveguide. The results obtained agree well with the earlier theoretical and experimental results.

Publication
IEICE TRANSACTIONS on transactions Vol.E66-E No.2 pp.75-81
Publication Date
1983/02/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Acoustic Waveguides

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