A Three-Dimensional Finite Difference Time Domain - Perfectly Matched Layer Algorithm Based on Piecewise-Linear Approximation for Linear Dispersive Media

Abstract

Starting with the unsplit-field uniaxial Perfectly Matched Layer (PML) formulation, a second-order accurate Finite Difference Time Domain (FDTD) - PML algorithm is obtained using the piecewise-linear approximation. Use of the FDTD-PML algorithm results in the proper long time limit behavior where the electric field value decreases exponentially to zero inside a PML medium long after an electromagnetic pulse is incident on the PML medium. The behavior is consistent with the other PML algorithm, such as Gedney's two-step approach.

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Document Details

Document Type
Technical Report
Publication Date
Feb 24, 2000
Accession Number
ADA379806

Entities

People

  • David Dietz
  • S. J. Yakura

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Algorithms
  • Computational Science
  • Convolution Integrals
  • Directed Energy Weapons
  • Electric Fields
  • Electromagnetic Fields
  • Equations
  • Finite Difference Time Domain
  • Government Procurement
  • Governments
  • Magnetic Fields
  • Numerical Analysis
  • Simulations
  • Three Dimensional
  • Time Domain

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Operations Research