Title :
Zero index metamaterials with checkerboard structure
Author :
Kwon, D.-H. ; Li, L. ; Bossard, J.A. ; Bray, M.G. ; Werner, D.H.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., PA
Abstract :
A metamaterial design is presented with an effectively zero index of refraction, which utilises Drude-type material blocks arranged in a checkerboard pattern within a nondispersive dielectric host. An averaging effect over constituent materials of the checkerboard structure yields an effective permittivity that approaches zero. This results in a metamaterial with a zero index of refraction and a high intrinsic impedance. A design example and the associated effective medium parameters are provided
Keywords :
metamaterials; microwave materials; permittivity; refractive index; Drude-type material blocks; averaging effect; checkerboard structure; nondispersive dielectric host; zero index metamaterials;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070197