Calculations of precursor propagation in dispersive dielectrics.

Bacon, Larry Donald

Sandia National Laboratories

关键词: 36 Materials Science;    Spectra;    Dielectric Materials;    Precursor;    Water;   

DOI  :  10.2172/918350
RP-ID  :  SAND2003-3040
RP-ID  :  AC04-94AL85000
RP-ID  :  918350

美国|英语

来源: UNT Digital Library

【 摘 要 】

The present study is a numerical investigation of the propagation of electromagnetic transients in dispersive media. It considers propagation in water using Debye and composite Rocard-Powles-Lorentz models for the complex permittivity. The study addresses this question: For practical transmitted spectra, does precursor propagation provide any features that can be used to advantage over conventional signal propagation in models of dispersive media of interest? A companion experimental study is currently in progress that will attempt to measure the effects studied here.