Title :
Pulse excitation of a cavity with dispersive medium that refractive index is positive and negative
Author :
Antyufeyeva, M.S. ; Tretyakov, O.A.
Author_Institution :
Karazin Kharkov Nat. Univ., Kharkov, Ukraine
Abstract :
Excitation of electromagnetic fields by a wideband current pulse in a cavity filled with dispersive medium and bounded by a closed perfectly conducting surface is studied. Frequency dependence of the cavity filling is described by combination Lorentz poles for permittivity and permeability. Some features of such electromagnetic system and transient field evolution are presented.
Keywords :
cavity resonators; dispersive media; electromagnetic fields; metamaterials; permeability; permittivity; refractive index; cavity filling; combination Lorentz poles; dispersive medium; electromagnetic field excitation; permeability; permittivity; refractive index; Cavity resonators; Dispersion; Permeability; Permittivity; Refractive index; Resonant frequency; Cavity resonator; analytical approach in time domain; dispersion; double negative media; metamaterial; transient excitation;
Conference_Titel :
Ultrawideband and Ultrashort Impulse Signals (UWBUSIS), 2010 5th International Conference on
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4244-7470-7
Electronic_ISBN :
978-1-4244-7469-1
DOI :
10.1109/UWBUSIS.2010.5609163
