Numerical Modeling and Analysis of Transient Electromagnetic Wave Interaction with Dispersive Targets

Abstract

Analytical and numerical techniques were developed for modeling transient electromagnetic wave propagation in dispersive dielectrics. Time domain asymptotic techniques were used to understand the decay of pulses in such media and to develop energy estimates useful in RFR dosimetry. Fourth order accurate numerical schemes were proposed for such problems and analyzed. Due to the large stencil of these schemes special absorbing boundary conditions were developed and analyzed. Numerical tests indicated a four orders of magnitude superiority of our conditions over the classical techniques.

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Document Details

Document Type
Technical Report
Publication Date
Jan 20, 1998
Accession Number
ADA337890

Entities

People

  • Peter G. Petropoulos

Organizations

  • Southern Methodist University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Cell Size
  • Dielectrics
  • Differential Equations
  • Electromagnetic Pulses
  • Electromagnetic Scattering
  • Equations
  • Integral Equations
  • Materials
  • Mathematics
  • Partial Differential Equations
  • Scattering
  • Simulations
  • Stability Conditions
  • Time Domain
  • Universities

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Nuclear and Radiation Engineering.
  • Plasma Physics / Magnetohydrodynamics