Summary
URSI Commission B 2013 International Symposium on Electromagnetic Theory EMTS 2013
2013
Session Number:24AM1F
Session:
Number:24AM1F-07
Material Characterization in Partially Filled Waveguides Using Inverse Scattering and Multiple Sample Orientations
Daniel Sjöberg, Christer Larsson,
pp.942-945
Publication Date:2013/5/20
Online ISSN:2188-5079
DOI:10.34385/proc.30.24AM1F-07
Summary:
We present a method aimed at reducing uncertainties and instabilities when characterizing materials in waveguide setups. The S-parameters for a rectangular waveguide loaded with a rectangular sample block are measured for three different sample orientations, and the corresponding geometries are modeled in a finite element program, taking any material parameters as input. The material parameters of the sample are found by minimizing the squared distance between measured and calculated S-parameters.