Title :
Double negative behavior of a circular waveguide with metamaterials
Author :
Xin Guo ; Jinhua Cao ; Zhaoyun Duan
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
We have simulated a circular waveguide loaded with double-negative metamaterials (DNMs) and single-negative metamaterials (SNMs) characterized by the Drude and Lorentz models respectively. The simulation results clearly show a passband in a desired frequency range in which both the permittivity and permeability of the DNMs have negative real parts, whereas a stopband appears for the SNMs cases. The results presented here can provide a foundation on the experimental verification of the reversed Cherenkov radiation (RCR) emitted by charged particles moving in a circular waveguide partially filled with the DNMs.
Keywords :
circular waveguides; metamaterials; permeability; permittivity; DNM; Drude models; Lorentz models; RCR; SNM; charged particles; circular waveguide; double negative behavior; double-negative metamaterials; permeability; permittivity; reversed Cherenkov radiation; single-negative metamaterials; Load modeling; Metamaterials; Permeability; Permittivity; Resonant frequency; Waveguide components;
Conference_Titel :
Metamaterials (Meta), 2012 International Workshop on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-2807-4
DOI :
10.1109/META.2012.6464920
