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

Volume

38

Issue

2

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

817

Lastpage

820

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.996211

Filename

996211