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

Volume

13

Issue

4

fYear

2003

fDate

4/1/2003 12:00:00 AM

Firstpage

155

Lastpage

157

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;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2003.811042

Filename

1193051