Abstract
The aim of this proposal is to demonstrate the ability of tridimensional (3-D) electromagnetic modeling tool for the characterization of composite materials in microwave frequency band range. Indeed, an automated procedure is proposed to generate random materials, proceed to 3-D simulations, and compute shielding effectiveness (SE) statistics with finite integration technique. In this context, 3-D electromagnetic models rely on random locations of conductive inclusions; results are compared with classical electromagnetic mixing theory (EMT) approaches (e.g. Maxwell-Garnett formalism), and dynamic homogenization model (DHM). The article aims to demonstrate the interest of the proposed approach in various domains such as propagation and electromagnetic compatibility (EMC).
Highlights
The community of metamaterials has deeply questioned the necessity for advanced procedures: for instance regarding the impact of surface roughness of materials on metamaterial performances [1], or the introduction of coordinate transformation to design original metamaterial devices such as antennas in [2]
This article is devoted to the extraction of statistical electromagnetic shielding properties of composite biphasic mixtures for electromagnetic compatibility (EMC) purposes
A simulation tool has been developed to assess the variability of random achievement of composite materials
Summary
The need for accurate, efficient, and deterministic electromagnetic tools is all the more important than more and more applications require relevant modeling procedures to simultaneously take into account the complexity (e.g. models needing multi-physics solvers, and multiscales materials) of various complex media. In this framework, the community of metamaterials has deeply questioned the necessity for advanced procedures: for instance regarding the impact of surface roughness of materials on metamaterial performances [1] (jointly with finite difference in time domain, FDTD, simulations), or the introduction of coordinate transformation to design original metamaterial devices such as antennas in [2].
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