Modeling of Ferrite-based Materials for Shielding Enclosures

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Názov: Modeling of Ferrite-based Materials for Shielding Enclosures
Autori: Koledintseva, Marina, Drewniak, James L., Zhang, Yaojiang, Lenn, James A., Thoms, Melanie
Zdroj: Electrical and Computer Engineering Faculty Research & Creative Works
Informácie o vydavateľovi: Scholars' Mine
Rok vydania: 2009
Zbierka: Missouri University of Science and Technology (Missouri S&T): Scholars' Mine
Predmety: Bruggeman Formulation, FDTD Technique, Maxwell Garnett Formulation, Magneto-Dielectric Composites, Microwave Permeability, Microwave Permittivity, Shielding Effectiveness (S.E.), Maxwell Garnett And Bruggeman Formulations, Microwave Permittivity And Permeability, Capillarity, Composite Micromechanics, Ferrite, Garnets, Magnetic Shielding, Magnetos, Maxwell Equations, Microwaves, Permittivity, Wave Equations, Analytical Models, Auxiliary Differential Equations, Dielectric Mixtures, Effective Medium Theories, FDTD Codes, Ferrite Powders, Modeling Structures, Numerical Examples, Shielding Enclosures, Finite Difference Time Domain Method, Electrical and Computer Engineering
Popis: 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.
Druh dokumentu: text
Jazyk: unknown
Relation: https://scholarsmine.mst.edu/ele_comeng_facwork/134; https://doi.org/10.1016/j.jmmm.2008.11.037
DOI: 10.1016/j.jmmm.2008.11.037
Dostupnosť: https://scholarsmine.mst.edu/ele_comeng_facwork/134
https://doi.org/10.1016/j.jmmm.2008.11.037
Rights: © 2009 Elsevier, All rights reserved.
Prístupové číslo: edsbas.7026EDDD
Databáza: BASE
Popis
Abstrakt: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.
DOI:10.1016/j.jmmm.2008.11.037