Fast, Accurate and Full Extraction of Coupling-of-Modes Parameters by Finite Element Method

This paper presents a new numerical approach for the full extraction of coupling-of-modes (COM) parameters by stationary and eigenfrequency analyses in finite element method (FEM). is fast extracting from results static analysis analysis. It avoids long calculation time admittance frequency response analysis, which commonly used COM parameters. In addition to usual (velocity, reflection coefficient, transduction coefficient capacitance), phases can be also extracted with this method. The proposed was applied different cutting types LiNbO3 thicknesses varying interdigital transducer (IDT). These examples show that our has great potential all Rayleigh SAW kinds IDT structures. Therefore, it fast, accurate, general