Time-Domain Free-Space Evaluations of Urethane Slabs with Finite-Difference Time-Domain Computer Simulations

Published

August 1, 1998

Author(s)

Robert T. Johnk, Arthur Ondrejka, Christopher L. Holloway

Abstract

This paper describes the extration of electrical material properties of lossy, carbon-doped urethane slabs using a free-space time-domain reflectivity measurement system of developed by the National Institute of Standards and Technology (NIST). In order to validate the measurement results, the measurement system was simulated using finite-difference time-domain (FDTD) techniques. Reflectivity measurement results and theoretical predictions as a function of carbon-doping, frequency, and angle of incidence are presented. Complex permittivity results are also presented for two urethane slabs with different carbon-doping levels.

Proceedings Title

Proc. Electromagnetic Compatibility (EMC) Symposium

Volume

2

Conference Dates

August 24-28, 1998

Conference Location

Denver, CO

Pub Type

Conferences

Keywords

backscatter, carbon doping, deconvolution, debye model dispersion, optimization, synthetic-time domain, TEM horn, time gating, urethane

Citation

Johnk, R. , Ondrejka, A. and Holloway, C. (1998), Time-Domain Free-Space Evaluations of Urethane Slabs with Finite-Difference Time-Domain Computer Simulations, Proc. Electromagnetic Compatibility (EMC) Symposium, Denver, CO (Accessed October 27, 2025)