FEM/BEM Analysis of a Generalized Periodic Array

FEM/BEM Analysis of a Generalized Periodic Array

Recent developments in wide bandwidth SAW filter design led to the use of complex electroacoustic cells, such as the Hanma-Hunsinger cell. For this kind of structure, it is not sufficient to use only a single electrode periodic FEM/BEM model to derive the P-matrix parameters. The present paper propo...

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Veröffentlicht in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2007-10, Vol.54 (10), p.2052-2059
Hauptverfasser: Ventura, P., Steichen, W.
Format: Artikel
Sprache:eng
Schlagworte:
Acoustic waves
Admittance
Arrays
Bandwidth
Boundary element method
Computer simulation
Design engineering
Electric potential
Electrodes
Finite element method
Gratings
Mathematical analysis
Mathematical models
Numerical models
Periodic structures
SAW filters
Surface acoustic waves
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Beschreibung
Zusammenfassung:Recent developments in wide bandwidth SAW filter design led to the use of complex electroacoustic cells, such as the Hanma-Hunsinger cell. For this kind of structure, it is not sufficient to use only a single electrode periodic FEM/BEM model to derive the P-matrix parameters. The present paper proposes a mixed FEM/BEM numerical model for the simulation of a periodic array of metallic electrodes, the elementary cell of which can be as complex as necessary: it can contain several electrodes, connected to active ports, or short-circuited, or floating.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2007.500