Determination of frequency response of complex permittivity by global optimization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU75936" target="_blank" >RIV/00216305:26220/08:PU75936 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of frequency response of complex permittivity by global optimization

Popis výsledku v původním jazyce

Abstract : This paper discusses the application of global optimization to find of the frequency dependence of the complex permittivity of dielectric materials. If a slice of a real unknown material inserted into waveguide, its reflection and transmissioncoefficients can be measured and used as the desired optimum for the optimization of its numerical model to find appropriate values of complex permittivity to yield the same behavior of the model like the unknown material exhibits during measurements. The described approach is practically used to simplify numerical EMC simulations of aircraft models containing parts from multilayer composite materials (a dielectric, laminate layer completed by a shielding formed by metallic grating). Due to the fine structure of the grating, the numerical model of the composite requires an extremely dense discretization mesh resulting in very high CPU-time and memory demands. When replacing composite parts by equivalent homogeneous dielectric parts wit

Název v anglickém jazyce

Determination of frequency response of complex permittivity by global optimization

Popis výsledku anglicky

Abstract : This paper discusses the application of global optimization to find of the frequency dependence of the complex permittivity of dielectric materials. If a slice of a real unknown material inserted into waveguide, its reflection and transmissioncoefficients can be measured and used as the desired optimum for the optimization of its numerical model to find appropriate values of complex permittivity to yield the same behavior of the model like the unknown material exhibits during measurements. The described approach is practically used to simplify numerical EMC simulations of aircraft models containing parts from multilayer composite materials (a dielectric, laminate layer completed by a shielding formed by metallic grating). Due to the fine structure of the grating, the numerical model of the composite requires an extremely dense discretization mesh resulting in very high CPU-time and memory demands. When replacing composite parts by equivalent homogeneous dielectric parts wit

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Mediterranean Microwave Symposium MMS'2008

ISBN

9954-8577-0-2

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

University of Damascus

Místo vydání

Damascus, Sýrie

Místo konání akce

Damascus, Sýrie

Datum konání akce

14. 10. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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