Analysis of Rayleigh Waves in Piezoelectric Solids with Metal Coatings by the Rayleigh-Ritz Method

SummaryAnalyzing Rayleigh waves in structures of a piezoelectric solid coated with a patterned metal film layer is of great importance in developing acoustic wave resonators. The Rayleigh-Ritz method is used to analyze the problem of surface acoustic wave (SAW) propagation in the two-dimensional resonator structure with simplification as an effort to validate novel techniques and methods. Following a standard formulation, relatively accurate results are obtained from the approximate eigenvalue problem with the consideration of the boundary conditions in the analytical procedure. The computational cost is relatively low in comparison with the finite element analysis, thus making it more practical and preferable as an innovative modeling tool for an efficient design procedure.