Refine
Document Type
- Conference Proceeding (2) (remove)
Keywords
- Finite-Elemente-Methode (1)
- SAW-Bauelement (1)
- Ultraschall (1)
- Zwischenmodulation (1)
- akustisches Bauelement (1)
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.