Diamond-shaped hole array as a fishnet metamaterial for negative refraction

Author

Sabah, C. ; Yilmaz, Atila

Author_Institution

Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Guzelyurt, Cyprus

fYear

2013

fDate

17-18 April 2013

Firstpage

162

Lastpage

165

Abstract

In this paper, a new design of hole array in a double-layer periodic arrangement is introduced and investigated both numerically and experimentally for the negative refractive index. The structure shows similar behavior to that of the corresponding fishnet metamaterials. The effective constitutive parameters are revealed by using retrieval procedure to verify the negative refraction nature of the proposed structure. A relatively high figure of merit (FOM = -Re (n)/Im (n) =70.05) is achieved at the K-band (18-26.5) frequency region. Finally, a rescaled design is presented to demonstrate the capability of structure for high frequency regime.

Keywords

metamaterials; refractive index; FOM; K-band frequency region; diamond-shaped hole array; double-layer periodic arrangement; effective constitutive parameters; figure of merit; fishnet metamaterial; negative refractive index; rescaled design; retrieval procedure; Indexes; Metamaterials; Periodic structures; Permeability; Permittivity; Refractive index; Resonant frequency; Metamaterial; fishnet; microwave K-band; negative refraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Techniques (COMITE), 2013l Conference on

Conference_Location

Pardubice

Print_ISBN

978-1-4673-5512-4

Type

conf

DOI

10.1109/COMITE.2013.6545062

Filename

6545062