Title :
Metamaterial dispersion and loss in a double negative nonradiative dielectric waveguide
Author :
Topa, António L. ; Paiva, Carlos R. ; Barbosa, Afonso M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Inst. Super. Tecnico, Lisboa, Portugal
Abstract :
This paper addresses the influence of the metamaterial losses and dispersion on the performance of double negative non-radiative dielectric waveguides. The lossy dispersive Lorentz model is adopted for both the electric permittivity and the magnetic permeability. The dispersion properties of the longitudinal section magnetic modes and their root dynamics in the complex plane of the longitudinal wavenumber are analyzed. Finally, it is shown that the effect of metamaterial losses may suggest some potential applications.
Keywords :
dielectric losses; dispersive media; magnetic permeability; metamaterials; microwave materials; nonradiative dielectric waveguides; permittivity; double negative nonradiative dielectric waveguide; electric permittivity; longitudinal section magnetic modes; longitudinal wavenumber; lossy dispersive Lorentz model; magnetic permeability; metamaterial dispersion; metamaterial losses; Dielectric losses; Dispersion; Electromagnetic waveguides; Equations; Frequency; Magnetic materials; Metamaterials; Performance loss; Permeability; Permittivity; Lorentz model; Metamaterials; double negative media; non-radiative dielectric waveguide;
Conference_Titel :
Electrical and Electronics Engineers in Israel, 2008. IEEEI 2008. IEEE 25th Convention of
Conference_Location :
Eilat
Print_ISBN :
978-1-4244-2481-8
Electronic_ISBN :
978-1-4244-2482-5
DOI :
10.1109/EEEI.2008.4736612
