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International Journal of

Recent Trends in Engineering

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International Journal of Recent Trends in Engineering (IJRTE)

ISSN 1797-9617

Volume 1, Number 4, May 2009

Issue on Electrical & Electronics

Page(s): 90-93

FDTD Based EM Modeling and Analysis for Microwave Imaging of Buried Objects

Elizabeth Rufus, Zachariah C Alex

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Abstract

Non Destructive Evaluation and identification of buried inhomogeneities are of great importance in geophysical, civil engineering, military and medical applications. The basis for the microwave imaging technique is the significant contrast in the dielectric material characteristics at the microwave frequencies.

In this paper, microwave imaging technique feasibility is studied by using Finite Difference Time Domain (FDTD) method. It is applied to study the electromagnetic scattering and to investigate the presence and location of the buried object in a dielectric medium. The investigation considers the medium formed by a circular cylindrical plastic container filled with oil and a small highly reflecting object as a target.

Index Terms

Microwaves, dielectric constant, Finite Difference Time Domain (FDTD)

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