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Full 2D-FEM calculations of third-order intermodulations in SAW devices
(2016)
- 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.
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Open Source für das Smart Home
(2017)
- In dieser Arbeit werden verschiedene Open Source Lösungen zur Implementierung einer Smart Home Lösung vorgestellt und verglichen.