Material characterization in partially filled waveguides using inverse scattering and multiple sample orientations
(2015) In Radio Science 50(6). p.554-561- Abstract
- 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... (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:
https://lup.lub.lu.se/record/7791331
- author
- Sjöberg, Daniel LU and Larsson, Christer LU
- organization
- publishing date
- 2015
- 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 (AGU)
- 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
- 2016-04-01 14:11:22
- date last changed
- 2022-01-27 23:17:53
@article{a4430551-7c8e-4b06-9ff4-a084985b99fb, abstract = {{Abstract in Undetermined<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}}, keywords = {{material characterization; waveguide; inverse scattering}}, language = {{eng}}, number = {{6}}, pages = {{554--561}}, publisher = {{American Geophysical Union (AGU)}}, 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}}, doi = {{10.1002/2014RS005551}}, volume = {{50}}, year = {{2015}}, }