Non-Linear Dielectrics and Ferrites in ICEPIC

Abstract

Models for non-linear dielectrics and magnetic ferrites are developed and coded into the particle-in-cell code ICEPIC. The non-linear dielectric model includes a relaxation term to account for the physical response time of the material, which may be longer than an FDTD time step. The ferrite model accounts for the non-linearity of the Landau-Lifshitz-Gibert equation, and the magnetization update is derived from the solution of the equation on a time step. Initial testing of the models is encouraging, and work is underway on further improvement and refinement.

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Document Details

Document Type
Technical Report
Publication Date
Apr 10, 2012
Accession Number
ADA588852

Entities

People

  • Andrew D. Greenwood
  • Brad W. Hoff
  • David M. French
  • Susan L. Heidger

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Barium Strontium Titanates
  • Circular Polarization
  • Dielectrics
  • Directed Energy Weapons
  • Electric Fields
  • Equations
  • Frequency
  • High Power Microwaves
  • Lorentz Force
  • Magnetic Fields
  • Magnetization
  • Materials
  • Military Research
  • Particles
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Microwave Engineering.
  • Pulsed Power and Plasma Physics.