@inproceedings{MayerMayerMayeretal.2016, author = {Andreas Mayer and Elena Mayer and Markus Mayer and Philipp M. J{\"a}ger and Werner Ruile and Ingo Bleyl and Karl Wagner}, title = {Full 2D-FEM calculations of third-order intermodulations in SAW devices}, series = {2016 IEEE International Ultrasonics Symposium (IUS)}, organization = {IEEE}, isbn = {978-1-4673-9897-8}, doi = {10.1109/ULTSYM.2016.7728469}, year = {2016}, abstract = {In a recent paper it has been shown that the effective nonlinear constant which is used in a P-Matrix approach to describe third-order intermodulation (IMD3) in surface acoustic wave (SAW) devices can be obtained from finite element (FEM) calculations of a periodic cell using nonlinear tensor data [1]. In this paper we extend this FEM calculation and show that the IMD3 of an infinite periodic array of electrodes on a piezoelectric substrate can be directly simulated in the sagittal plane. This direct approach opens the way for a FEM based simulation of nonlinearities for finite and generalized structures avoiding the simplifications of phenomenological approaches.}, language = {en} }