Theory and Applications of the 3-Dimensional Finite-Difference Time- Domain Method

Abstract

The 3-dimensional finite-difference time-domain method is a numerical method for solving electromagnetic penetration and scattering problems. It uses a finite difference representation of the time dependent Maxwell equations. The object of interest is embedded in a lattice and the time is divided in discrete intervals. By applying the finite-difference equations for every time step the propagation and scattering of waves is simulated. In this report the 3- dimensional FD-TD method and its algorithms are explained. Results are presented for a perfectly conducting plate, cube and wedge and for a dielectric layered sphere. The calculated results agree with experimental and, exact theoretical results. Numerical computations, Finite difference method, Scattering of electromagnetic waves, Maxwell equation, Radar cross section, Time domain method, Boundary conditions.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1992
Accession Number
ADA256559

Entities

People

  • G. J. Van Gennip

Organizations

  • Netherlands Organisation for Applied Scientific Research

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Computations
  • Difference Equations
  • Electromagnetic Fields
  • Equations
  • Far Field
  • Finite Difference Time Domain
  • Geometry
  • Magnetic Fields
  • Measurement
  • Metal Plates
  • Near Field
  • Scattering
  • Steady State
  • Three Dimensional
  • Time Domain

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)