Numerical Modeling of Periodic Composite Media for Electromagnetic Shielding Application

This paper describes a methodology to extract effective electrical properties for periodic composite medium. The extraction algorithm is based on a periodic finite-difference time-domain (FDTD) method. The results are compared with conventional mixing theories and 3D Fourier series expansion methods...

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Bibliographic Details
Main Authors: Dagang Wu, Rui Qiang, Ji Chen, Ce Liu, Koledintseva, M., Drewniak, J.
Format: Conference Proceeding
Language:English
Subjects:
Composite materials
Conductivity
Dielectrics
Electromagnetic compatibility
Electromagnetic modeling
Electromagnetic shielding
Finite difference methods
Fourier series
Numerical models
Shape
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Description
Summary:This paper describes a methodology to extract effective electrical properties for periodic composite medium. The extraction algorithm is based on a periodic finite-difference time-domain (FDTD) method. The results are compared with conventional mixing theories and 3D Fourier series expansion methods. Two results show satisfactory agreement. With the extracted effective permittivity and conductivity, one can readily use these parameters to study electrical properties of composite materials with arbitrary micro-geometry and the shielding effects of using composite materials.
ISSN:2158-110X
2158-1118
DOI:10.1109/ISEMC.2007.216