Effective-medium properties of a free-space transmission-line metamaterial superlens

Author

Iyer, Ashwin K. ; Eleftheriades, George V.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON

fYear

2009

fDate

15-18 Feb. 2009

Firstpage

1

Lastpage

4

Abstract

This work discusses the validity of the effective-medium interpretation of the multilayer negative-refractive-index transmission-line (NRI-TL) metamaterial superlens using supporting simulation and experimental data. The uniqueness of its extracted effective permittivity and permeability is verified through a comparison of simulation data for lenses of different thicknesses, and simulations of negative refraction for various angles of incidence illustrate that an effective-medium perspective is justified. Experimental results for subdiffraction imaging are corroborated by the theory governing the relationship between loss, resolution, and bandwidth.

Keywords

lenses; metamaterials; multilayers; refractive index; transmission lines; effective-medium properties; free-space metamaterial superlens; multilayer; negative refraction; negative-refractive-index metamaterial superlens; permeability; permittivity; subdiffraction imaging; transmission-line metamaterial superlens; Data mining; Frequency; Lenses; Metamaterials; Nonhomogeneous media; Permeability; Permittivity; Slabs; Solids; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting, 2009. ANTEM/URSI 2009. 13th International Symposium on

Conference_Location

Toronto, ON

Print_ISBN

978-1-4244-2979-0

Electronic_ISBN

978-1-4244-2980-6

Type

conf

DOI

10.1109/ANTEMURSI.2009.4805073

Filename

4805073