Title :
Analysis of propagation in metamaterial-lined circular waveguides
Author :
Pollock, Justin G. ; Iyer, Ashwin K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
This paper studies the propagation characteristics of circular waveguides whose interior surface is coated with a thin metamaterial liner possessing dispersive, negative, and near-zero permittivity. Treating the waveguide as inhomogeneously filled, a field analysis of this system produces the dispersion of complex modes, and reveals intriguing phenomena such as below-cutoff propagation and field collimation.
Keywords :
metamaterials; waveguides; complex modes; interior surface; metamaterial-lined circular waveguides; thin metamaterial liner; Cutoff frequency; Dispersion; Electromagnetic waveguides; Magnetic materials; Metamaterials; Nonhomogeneous media; Permittivity;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711250
