Modeling of Shielding Composite Materials and Structures for Microwave Frequencies

Author

Marina Koledintseva, Missouri University of Science and TechnologyFollow
James L. Drewniak, Missouri University of Science and TechnologyFollow
Richard E. DuBroff, Missouri University of Science and TechnologyFollow
Konstantin Rozanov, Missouri University of Science and TechnologyFollow
Bruce Archambeault, Missouri University of Science and TechnologyFollow

Abstract

Composites containing conducting inclusions are required in many engineering applications, especially, for the design of microwave shielding enclosures to ensure electromagnetic compatibility and electromagnetic immunity. Herein, multilayer shielding structures are studied, with both absorbing and reflecting composite layers. In this paper, fiber-filled composites are considered. For modeling absorbing composites with low concentration of conducting cylindrical inclusions (below the percolation threshold), the Maxwell Garnett theory is used. For reflecting layers, when concentration of inclusions is close to or above the percolation threshold, the McLachlan formulation is used. Frequency dependencies for an effective permittivity are approximated by the Debye curves using a curve-fitting procedure, in particular, a genetic algorithm.

Recommended Citation

M. Koledintseva et al., "Modeling of Shielding Composite Materials and Structures for Microwave Frequencies," Progress In Electromagnetics Research B, no. 15, pp. 197 - 215, EMW Publishing, Jul 2009.

The definitive version is available at https://doi.org/10.2528/PIERB09050410

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

International Standard Serial Number (ISSN)

1937-6472

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 EMW Publishing, All rights reserved.

Publication Date

01 Jul 2009