Measurement of Electromagnetic Parameters and FDTD Modeling of Ferrite Cores

Abstract

The paper describes a methodology for an efficient design of novel products based on magneto-dielectric (ferrite) materials with desirable frequency responses that satisfy EMC and SI requirements. The methodology starts from estimating complex permittivity and permeability of these materials. This requires measurement techniques, approximation resultant frequency characteristics for permittivity and permeability using a curve-fitting procedure, and development of a full-wave numerical simulation tool that could deal with frequency-dispersive materials. An example of a ferrite material measurement, constitutive parameters extraction using a genetic algorithm, and corresponding FDTD modeling over the frequency range from 10 to 500 MHz is provided.

Meeting Name

IEEE International Symposium on Electromagnetic Compatibility (2009: Aug. 17-21, Austin, TX)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Complex Permittivity; Constitutive Parameters; Dispersive Materials; Efficient Designs; Electromagnetic Parameters; FDTD Modeling; Ferrite Cores; Ferrite Materials; Frequency Characteristic; Frequency Ranges; Measurement Techniques; Numerical Simulation; Capillarity; Computer Simulation; Curve Fitting; Dielectric Materials; Electromagnetic Compatibility; Electromagnetism; Ferrite; Finite Difference Time Domain Method; Permittivity; Plastic Molds; Frequency Response

International Standard Book Number (ISBN)

978-1424442676

International Standard Serial Number (ISSN)

1077-4076

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Aug 2009

Link to Full Text

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