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Full 2D-FEM calculations of third-order intermodulations in SAW devices

  • 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 periodicIn 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.show moreshow less

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Metadaten
Author:Andreas Mayer, Elena Mayer, Markus Mayer, Philipp M. Jäger, Werner Ruile, Ingo Bleyl, Karl Wagner
Creating Corporation:IEEE
Year of Publication:2016
Pagenumber:4
Language:English
Tag:Finite-Elemente-Methode; SAW-Bauelement; akustisches Bauelement
Parent Title (English):Ultrasonic Symposium
Document Type:Conference Proceeding
Institutes:Hochschule Offenburg / Bibliografie
Release Date:2017/08/21
Licence (German):License LogoEs gilt das UrhG
URL:http://ieeexplore.ieee.org/document/7728469/
DOI:https://doi.org/10.1109/ULTSYM.2016.7728469