Title :
Dispersion analysis of a microstrip-based negative refractive index periodic structure
Author :
Grbic, Anthony ; Eleftheriades, George V.
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Ont., Canada
fDate :
4/1/2003 12:00:00 AM
Abstract :
We present the complete band structure of a negative refractive index metamaterial based on the concept of dual transmission lines. The metamaterial is a two-dimensional (2-D) microstrip periodic structure that has cell dimensions much smaller than the wavelength of operation. It can therefore be considered as an effective medium. First, the dispersion characteristics of the metamaterial are explained by way of a 2-D loaded transmission line representation. Subsequently, full-wave analysis is utilized to reveal additional modes that can be excited in the metamaterial.
Keywords :
microstrip lines; periodic structures; refractive index; transmission line theory; 2D loaded transmission line; band structure; dispersion characteristics; dual transmission lines; effective medium; full-wave analysis; left handed medium; negative refractive index metamaterial; two-dimensional microstrip periodic structure; Electromagnetic radiation; Electromagnetic refraction; Metamaterials; Microstrip; Periodic structures; Permeability; Permittivity; Refractive index; Transmission lines; Two dimensional displays;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.811042
