Title :
Realization of ∈-negative-near-zero metamaterial liners for 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 investigates the realization of epsilon-negative and near-zero (ENNZ) metamaterial liners for below-cutoff propagation in circular waveguides using an inductively loaded thin-wire grid composed of radially and azimuthally directed wires. Full-wave parametric simulations show how parameters such as periodicity in ρ, φ, and z, along with the degree of inductive loading can alter the dispersion of the structure´s supported modes.
Keywords :
circular waveguides; metamaterials; ∈-negative-near-zero metamaterial liner realization; ENNZ metamaterial liners; azimuthally directed wires; below-cutoff propagation; circular waveguides; epsilon-negative-near-zero metamaterial liners; full-wave parametric simulations; inductive loading; inductively loaded thin-wire grid; radially directed wires; structure supported modes; Bandwidth; Cutoff frequency; Dispersion; Loading; Metamaterials; Permittivity; Wires; Metamaterials; backward-wave; below-cutoff propagation; circular waveguides; epsilon-near-zero; miniaturization; negative permittivity; thin-wire media;
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2013 IEEE
Conference_Location :
Bhubaneswar
Print_ISBN :
978-1-4799-3266-5
DOI :
10.1109/AEMC.2013.7045062
