Complex Dielectric Constant Computation from Three Dimensional Simulations of Random Media Using The Finite Difference Time Domain Method

Abstract:- Several mixing models are available in order to determine the effective dielectric constant of materials made up of different constituents. Most of these models have regions of validity that depend on the fractional volume of inclusions and the operating frequency. In this paper we compar...

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Bibliographic Details
Main Authors: Elias M. Nassar, Joel T. Johnson, Robert Lee
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Key-Words
random media
dielectric constant
FDTD
mixing law
sea ice
Monte Carlo
Sea ice
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.4490
http://www.wseas.us/e-library/conferences/2006venice/papers/539-469.pdf
Description
Summary:Abstract:- Several mixing models are available in order to determine the effective dielectric constant of materials made up of different constituents. Most of these models have regions of validity that depend on the fractional volume of inclusions and the operating frequency. In this paper we compare results from the Claussius Mossotti mixing law to results obtained from a three dimensional Finite Difference Time Domain model of a random medium such as sea ice. The comparison shows that the FDTD model agrees with the mixing law for low fractional volume (less than 10 %) and low frequency less than 5 GHz.

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