Title

Modeling of Ferrite-based Materials for Shielding Enclosures

Abstract

An analytical model for a magneto-dielectric composite material is presented based on the Maxwell Garnett rule for a dielectric mixture, and on Bruggeman's effective medium theory for permeability of a ferrite powder embedded in a dielectric. In order to simultaneously treat frequency-dispersive permittivity and permeability of a composite in a full-wave FDTD code, a new algorithm based on discretized auxiliary differential equations has been implemented. In this paper, numerical examples of modeling structures containing different magneto-dielectric mixtures are presented.

Department(s)

Electrical and Computer Engineering

Second Department

Materials Science and Engineering

Keywords and Phrases

Bruggeman Formulation; FDTD Technique; Maxwell Garnett Formulation; Magneto-Dielectric Composites; Microwave Permeability; Microwave Permittivity; Shielding Effectiveness (S.E.)

Library of Congress Subject Headings

Electronic equipment enclosures,

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 Elsevier, All rights reserved.


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