Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

Published

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

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 February 26, 2024)
Created July 31, 1998, Updated October 12, 2021