Analysis of surface waves using orthogonal functions

摘要

A simple noniterative method using an orthonormal basis for expressing field distributions has been developed for obtaining surface‐wave solutions in piezoelectric crystals. Velocity and field distributions are obtained forYZLiNbO3that agree with earlier works. The boundary conditions are incorporated in a manner that is easily adapted to layered structures. Dispersion curves are obtained for surface waves in LiTaO3with a SiO2layer at the surface; the results are in good agreement with those published earlier.