Title :
Analysis of shielding performance in nonlinear media
Author :
Bertoncini, Francesco ; Cardelli, Ermanno ; Di Fraia, Sebastiano ; Tellini, Bernardo
Author_Institution :
Dept. of Electr. Syst. & Autom., Pisa Univ., Italy
fDate :
3/1/2002 12:00:00 AM
Abstract :
In this paper, the shielding performance of a nonlinear magnetic material with hysteresis at extremely low frequency has been investigated. A one-dimensional in space finite-difference implicit time-domain algorithm has been implemented on the geometry of a shield with axial-symmetry. A scalar Preisach model has been adopted for taking into account the multistable point behavior of the medium and an online strategy for the Preisach function implementation has been used. Simulation results are here presented and discussed
Keywords :
electromagnetic shielding; finite difference time-domain analysis; magnetic hysteresis; nonlinear media; Preisach function implementation; axial-symmetry; finite-difference implicit time-domain algorithm; multistable point behavior; nonlinear magnetic material; nonlinear media; online strategy; scalar Preisach model; scalar hysteresis; shielding performance; Electromagnetic shielding; Equations; Frequency; Geometry; Magnetic analysis; Magnetic hysteresis; Magnetic materials; Magnetic shielding; Performance analysis; Time domain analysis;
Journal_Title :
Magnetics, IEEE Transactions on
