About: Measurement of Conductivity of Carbon Fibers at Microwave Frequencies

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper presents results of measurements conductivity of carbon fibers from DC to 13 GHz. The measurements were performed on the microstrip measurement line, where a section of the line is made from a flat tow of carbon fibers. Physical conductivity of carbon fibers is derived from the measured value of S21 of the section of microstrip line in two steps. First, a tow of fibers is replaced by a homogenous material having an unknown effective conductivity. Then S21 of the section of the microstrip line having metallization made from the effective media is analyzed by 3D fullwave simulation program for a range of effective conductivities. The actual effective conductivity is found iteratively to match the measured and simulated S21 coefficients. Second, S21 of the planar slab having the effective conductivity obtained in the first step is calculated analytically. Then the slab is assumed to have a real microstructure with densely packed carbon fibers. The physical conductivity of the fibers is found iteratively by a local optimization technique, to match the analytical value of S21 and S21 obtained by the fullwave FEM simulation for the slab with carbon fibers. The paper presents results of measurements conductivity of carbon fibers from DC to 13 GHz. The measurements were performed on the microstrip measurement line, where a section of the line is made from a flat tow of carbon fibers. Physical conductivity of carbon fibers is derived from the measured value of S21 of the section of microstrip line in two steps. First, a tow of fibers is replaced by a homogenous material having an unknown effective conductivity. Then S21 of the section of the microstrip line having metallization made from the effective media is analyzed by 3D fullwave simulation program for a range of effective conductivities. The actual effective conductivity is found iteratively to match the measured and simulated S21 coefficients. Second, S21 of the planar slab having the effective conductivity obtained in the first step is calculated analytically. Then the slab is assumed to have a real microstructure with densely packed carbon fibers. The physical conductivity of the fibers is found iteratively by a local optimization technique, to match the analytical value of S21 and S21 obtained by the fullwave FEM simulation for the slab with carbon fibers. (en)
Title	Measurement of Conductivity of Carbon Fibers at Microwave Frequencies Measurement of Conductivity of Carbon Fibers at Microwave Frequencies (en)
skos:prefLabel	Measurement of Conductivity of Carbon Fibers at Microwave Frequencies Measurement of Conductivity of Carbon Fibers at Microwave Frequencies (en)
skos:notation	RIV/70883521:28140/13:43870170!RIV14-MSM-28140___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0089)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Křesálek, Vojtěch Goňa, Stanislav Tomášek, Pavel
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Tomáše Bati ve Zlíně / Fakulta aplikované informatiky
http://linked.open...dnocenehoVysledku	86695
http://linked.open...ai/riv/idVysledku	RIV/70883521:28140/13:43870170
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Conductivity\|\|transmission line measurements\|\|fullwave electromagnetic modeling\|\|microwave measurements (en)
http://linked.open.../riv/klicoveSlovo	Conductivity\|\|transmission line measurements\|\|fullwave electromagnetic modeling\|\|microwave measurements
http://linked.open...ontrolniKodProRIV	[10BCCC86437C]
http://linked.open...v/mistoKonaniAkce	Pardubice
http://linked.open...i/riv/mistoVydani	New York
http://linked.open...i/riv/nazevZdroje	2013 23rd International Conference Radioelektronika (Radioelektronika)
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	The Centre of Security, Information and Advanced Technologies (CEBIA-Tech)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Goňa, Stanislav Křesálek, Vojtěch Tomášek, Pavel
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open...ain/vavai/riv/wos	000326877900011
http://linked.open.../riv/zahajeniAkce	2013-04-16 (xsd:date)
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1109/RadioElek.2013.6530892
http://purl.org/ne...btex#hasPublisher	IEEE
https://schema.org/isbn	978-1-4673-5516-2
http://localhost/t...ganizacniJednotka	28140

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