Title :
Negative Refraction in a Cut-Off Parallel-Plate Waveguide Loaded with Two-Dimensional Lattice of Dielectric Resonators
Author :
Ueda, Tetsuya ; Lai, Anthony ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA
Abstract :
A two-dimensional (2D) negative-refractive-index metamaterial is proposed, which is composed of a parallel-plate waveguide and a square lattice of dielectric resonators (DR) inserted in it. The collective and macroscopic behavior of the DR lattice under TE resonance gives negative effective permeability whereas the parallel-plate waveguide below the cut-off for fundamental TE modes shows negative effective permittivity, which leads to the left-handedness. The 2D triangular prism of the proposed left-handed waveguide that is sandwiched by right-handed parallel-plate waveguides provides the numerical and experimental demonstrations of the negative refraction for the propagated waves
Keywords :
dielectric resonators; electromagnetic wave refraction; metamaterials; parallel plate waveguides; permittivity; 2D triangular prism; TE modes; TE resonance; dielectric resonators; lenses; macroscopic behavior; negative effective permeability; negative effective permittivity; negative refraction; negative-refractive-index metamaterial; periodic structures; right-handed parallel-plate waveguide; square lattice; two-dimensional lattice; Dielectrics; Lattices; Loaded waveguides; Metamaterials; Periodic structures; Permeability; Permittivity; Resonance; Tellurium; Two dimensional displays; Lenses; dielectric resonators; parallel plate waveguides; periodic structures;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281385
