Electromagnetic Characterization of Inhomogeneous Media

Abstract

Developed two permittivity profile extraction algorithms for inhomogeneous materials. These two algorithms were created using discrete and continuous approaches. The discrete method used a piece-wise constant permittivity assumption that allowed the use of homogeneous wave equations. Using laboratory data and a theoretical formulation, the permittivity of each piece-wise constant layer within the material was extracted using a root search algorithm. The continuous approach solved the problem using inhomogeneous wave equations. These equations were used to extract a linear permittivity profile using laboratory data and a root search.

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Document Details

Document Type
Technical Report
Publication Date
Mar 22, 2012
Accession Number
ADA558463

Entities

People

  • Marcus A. Sitterly

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Algorithms
  • Bessel Functions
  • Dielectric Permittivity
  • Differential Equations
  • Electric Fields
  • Electromagnetic Scattering
  • Engineering
  • Equations
  • Error Analysis
  • Extraction
  • Fabrication
  • Magnetic Fields
  • Materials
  • Partial Differential Equations
  • Wave Equations

Readers

  • Calculus or Mathematical Analysis
  • Database Systems and Applications
  • Microwave Engineering.