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Material characterization in partially filled waveguides using inverse scattering and multiple sample orientations

Sjöberg, Daniel LU and Larsson, Christer LU (2015) In Radio Science 50(6). p.554-561
Abstract (Swedish)
Abstract in Undetermined

We present a method aimed at reducing uncertainties and instabilities when characterizing materials in waveguide setups. The method is based on measuring the S parameters for three different orientations of a rectangular sample block in a rectangular waveguide. The corresponding geometries are modeled in a commercial full-wave simulation 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. The information added by the different sample orientations is quantified using the Cramer-Rao lower bound. The flexibility of the method allows the determination of material parameters of... (More)
Abstract in Undetermined

We present a method aimed at reducing uncertainties and instabilities when characterizing materials in waveguide setups. The method is based on measuring the S parameters for three different orientations of a rectangular sample block in a rectangular waveguide. The corresponding geometries are modeled in a commercial full-wave simulation 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. The information added by the different sample orientations is quantified using the Cramer-Rao lower bound. The flexibility of the method allows the determination of material parameters of an arbitrarily shaped sample that fits in the waveguide. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
material characterization, waveguide, inverse scattering
in
Radio Science
volume
50
issue
6
pages
554 - 561
publisher
American Geophysical Union
external identifiers
  • wos:000358016900008
  • scopus:84947025011
ISSN
0048-6604
DOI
10.1002/2014RS005551
language
English
LU publication?
yes
id
a4430551-7c8e-4b06-9ff4-a084985b99fb (old id 7791331)
date added to LUP
2015-08-27 13:21:34
date last changed
2017-01-29 03:51:08
@article{a4430551-7c8e-4b06-9ff4-a084985b99fb,
  abstract     = {<b>Abstract in Undetermined</b><br/><br>
We present a method aimed at reducing uncertainties and instabilities when characterizing materials in waveguide setups. The method is based on measuring the S parameters for three different orientations of a rectangular sample block in a rectangular waveguide. The corresponding geometries are modeled in a commercial full-wave simulation 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. The information added by the different sample orientations is quantified using the Cramer-Rao lower bound. The flexibility of the method allows the determination of material parameters of an arbitrarily shaped sample that fits in the waveguide.},
  author       = {Sjöberg, Daniel and Larsson, Christer},
  issn         = {0048-6604},
  keyword      = {material characterization,waveguide,inverse scattering},
  language     = {eng},
  number       = {6},
  pages        = {554--561},
  publisher    = {American Geophysical Union},
  series       = {Radio Science},
  title        = {Material characterization in partially filled waveguides using inverse scattering and multiple sample orientations},
  url          = {http://dx.doi.org/10.1002/2014RS005551},
  volume       = {50},
  year         = {2015},
}