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Optimization Techniques for Permittivity and Permeability Determination
This paper discusses optimization techniques for the determination of complex permittivity and permeability in transmission lines. The traditional theoretical model using scattering parameters is extended into a mathematical regression model that can be solved with widely accepted numerical techniqu...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
1991
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4927233/ https://www.ncbi.nlm.nih.gov/pubmed/28184131 http://dx.doi.org/10.6028/jres.096.033 |
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author | Domich, Paul D. Baker-Jarvis, James Geyer, Richard G. |
author_facet | Domich, Paul D. Baker-Jarvis, James Geyer, Richard G. |
author_sort | Domich, Paul D. |
collection | PubMed |
description | This paper discusses optimization techniques for the determination of complex permittivity and permeability in transmission lines. The traditional theoretical model using scattering parameters is extended into a mathematical regression model that can be solved with widely accepted numerical techniques. This new model produces accurate primary mode results for the samples tested including nonmagnetic and magnetic materials with high dielectric constants. An extension of the model includes responses due to higher order modes. The general model determines parameters to specify the spectral functional form of complex permittivity and permeability and is capable of small corrections to independent variable data including angular frequency, sample length, sample position, and cutoff wavelength. The method provides reliable determination for both low and high permittivity materials. |
format | Online Article Text |
id | pubmed-4927233 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1991 |
publisher | [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology |
record_format | MEDLINE/PubMed |
spelling | pubmed-49272332017-02-09 Optimization Techniques for Permittivity and Permeability Determination Domich, Paul D. Baker-Jarvis, James Geyer, Richard G. J Res Natl Inst Stand Technol Article This paper discusses optimization techniques for the determination of complex permittivity and permeability in transmission lines. The traditional theoretical model using scattering parameters is extended into a mathematical regression model that can be solved with widely accepted numerical techniques. This new model produces accurate primary mode results for the samples tested including nonmagnetic and magnetic materials with high dielectric constants. An extension of the model includes responses due to higher order modes. The general model determines parameters to specify the spectral functional form of complex permittivity and permeability and is capable of small corrections to independent variable data including angular frequency, sample length, sample position, and cutoff wavelength. The method provides reliable determination for both low and high permittivity materials. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 1991 /pmc/articles/PMC4927233/ /pubmed/28184131 http://dx.doi.org/10.6028/jres.096.033 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright. |
spellingShingle | Article Domich, Paul D. Baker-Jarvis, James Geyer, Richard G. Optimization Techniques for Permittivity and Permeability Determination |
title | Optimization Techniques for Permittivity and Permeability Determination |
title_full | Optimization Techniques for Permittivity and Permeability Determination |
title_fullStr | Optimization Techniques for Permittivity and Permeability Determination |
title_full_unstemmed | Optimization Techniques for Permittivity and Permeability Determination |
title_short | Optimization Techniques for Permittivity and Permeability Determination |
title_sort | optimization techniques for permittivity and permeability determination |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4927233/ https://www.ncbi.nlm.nih.gov/pubmed/28184131 http://dx.doi.org/10.6028/jres.096.033 |
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