Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Finite Element Time Domain and Its Applications
Cigánek, Jan ; Dědková, Jarmila (oponent) ; Karban, Pavel (oponent) ; Raida, Zbyněk (vedoucí práce)
The thesis deals with modeling dispersive media by the finite-element time-domain method. Mathematical model including dispersive models is proposed and finite element approximation of this model is presented. Three of the most commonly used dispersive models are investigated, namely the Debye model, the Lorentz model and the Drude model. The techniques for implementing these dispersive models are described. Presented techniques are incorporated into a finite element method. Finally, a new method based on a digital filtering technique is presented. Various test examples are used to verify all the developed methods. Achieved results are discussed, and possible improvements of methods are suggested.
Finite Element Time Domain and Its Applications
Cigánek, Jan ; Dědková, Jarmila (oponent) ; Karban, Pavel (oponent) ; Raida, Zbyněk (vedoucí práce)
The thesis deals with modeling dispersive media by the finite-element time-domain method. Mathematical model including dispersive models is proposed and finite element approximation of this model is presented. Three of the most commonly used dispersive models are investigated, namely the Debye model, the Lorentz model and the Drude model. The techniques for implementing these dispersive models are described. Presented techniques are incorporated into a finite element method. Finally, a new method based on a digital filtering technique is presented. Various test examples are used to verify all the developed methods. Achieved results are discussed, and possible improvements of methods are suggested.

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7 Karban, P.
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