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On the use of evolutionary algorithms in estimation of permittivity

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dc.title On the use of evolutionary algorithms in estimation of permittivity en
dc.contributor.author Tomášek, Pavel
dc.relation.ispartof Proceedings of the 2018 19th International Carpathian Control Conference, ICCC 2018
dc.identifier.isbn 978-1-5386-4762-2
dc.date.issued 2018
dc.citation.spage 23
dc.citation.epage 26
dc.event.title 19th International Carpathian Control Conference, ICCC 2018
dc.event.location Szilvásvárad
utb.event.state-en Hungary
utb.event.state-cs Maďarsko
dc.event.sdate 2018-05-28
dc.event.edate 2018-05-31
dc.type conferenceObject
dc.language.iso en
dc.publisher Institute of Electrical and Electronics Engineers Inc.
dc.identifier.doi 10.1109/CarpathianCC.2018.8399596
dc.relation.uri https://ieeexplore.ieee.org/document/8399596/
dc.subject Complex Permittivity en
dc.subject Evolutionary Algorithm en
dc.subject Free Space en
dc.subject Inverse Problem en
dc.subject S-parameters en
dc.description.abstract Evolutionary algorithms used in non-explicit inverse problems may represent a crucial helpful instrument. This work deals with estimation of complex permittivity. Current work widens previous theoretical knowledge and emphasizes on the progress in this field. Backward reconstruction of complex permittivity of single and multi-layered structures in free space in the range of millimetre and sub-millimetre waves remains a challenging and up to date complex problem. The basis of proposed system is represented by a verified direct mathematical model (deduced from Maxwell's equations) computing scattering parameters of defined non-magnetic materials in free space (of known thicknesses and complex permittivities). Turning this explicit model over and thus using transmission coefficients as the input of the system and applying evolutionary algorithm on it (Particle Swarm Optimization has been chosen for this purpose in this case) provides a tool producing useful relatively precise and fast estimations of complex material permittivity. © 2018 IEEE. en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1008113
utb.identifier.obdid 43878624
utb.identifier.scopus 2-s2.0-85050194830
utb.identifier.wok 000439260500009
utb.source d-scopus
dc.date.accessioned 2018-08-03T12:49:41Z
dc.date.available 2018-08-03T12:49:41Z
utb.ou CEBIA-Tech
utb.contributor.internalauthor Tomášek, Pavel
utb.fulltext.affiliation Pavel Tomasek Department of Electronics and Measurements Tomas Bata University in Zlin Nam. T. G. Masaryka 5555, 760 01 Zlin the Czech Republic Email: tomasek@fai.utb.cz
utb.fulltext.dates -
utb.fulltext.references [1] P. Tomasek, “Estimation of Permittivity of Materials using Sub-Millimeter Waves,” in 18th International Carpathian Control Conference (ICCC), Sinaia, Romania, 2017, ISBN 978-1-5090-5825-9. [2] D. Bourreau, A. Peden, and S. Le Maguer, “A Quasi-Optical Free-Space Measurement Setup Without Time-Domain Gating for Material Characterization in the W-Band,” Instrumentation and Measurement, IEEE Transactions on, vol. 55, no. 6, pp. 2022–2028, 2006, ISSN 0018-9456. [3] D. K. Ghodgaonkar, V. V. Varadan, and V. K. Varadan, “Free-space measurement of complex permittivity and complex permeability of magnetic materials at microwave frequencies,” Instrumentation and Measurement, IEEE Transactions on, vol. 39, no. 2, pp. 387–394, April 1990, ISSN 0018-9456. [4] J. Perini and L. S. Cohen, “Design of broad-band radar-absorbing materials for large angles of incidence,” IEEE Transactions on Electromagnetic Compatibility, vol. 35, no. 2, pp. 223–230, May 1993. [5] J. Kennedy and R. Eberhart, “Particle swarm optimization,” in IEEE International Conference on Neural Networks, vol. 4. IEEE, 1995, pp. 1942–1948. [6] A. R. von Hippel, Dielectric materials and applications. M.I.T. Press, 1961. [7] “Laboratory of terahertz spectroscopy, prague [online],” http://lts.fzu.cz/en/res-thz.htm, 2016, [cit. 2016-11-28].
utb.fulltext.sponsorship This work was supported by the Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Programme project No. LO1303 (MSMT-7778/2014). Special thanks belong to Vladimir Zelezny from Department of Dielectrics at Institute of Physics of the Czech Academy of Sciences in Prague who provided data from real measurements.
utb.scopus.affiliation Department of Electronics and Measurements, Tomas Bata University in Zlin, Nam. T. G. Masaryka 5555, Zlin, Czech Republic
utb.fulltext.projects LO1303 (MSMT-7778/2014)
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