MATLAB code for SAWS

A planar harmonic Green´s matrix function is widely exploited in theory of SAW devices. In many practical cases, the papal approximation to this function is sufficient for analysis. Here, a number of numerical codes are presented in MATLAB for fundamental analysis of surface acoustic waves in piezoelectric crystals, including: derivation of Stroh matrix for given material and Euler angles, visualization of slowness curves, bulk wave property, and complex roots of characteristic polynomial of corresponding boundary-value problem, evaluation of bulk wave cut-offs, plotting Green´s function dependent on a wave-number, evaluation of SAW wave-number, and finally evaluation of the papal approximation to a planar harmonic Green´s matrix function together with its immediate application in searching of high-velocity pseudo-surface waves. Use of the code is as easy as a mouse click.