Guven, K.Cakmak, A. O.Caliskan, M. D.Gundogdu, T. F.Kafesaki, M.Soukoulis, C. M.Özbay, Ekmel2016-02-082016-02-0820071464-4258http://hdl.handle.net/11693/23391We report an experimental and numerical analysis of a planar metamaterial designed for normal-to-plane propagation, and operating at microwave frequencies. The metamaterial consists of cutwire and wire patterns, which are arranged periodically on both sides of a dielectric layer, in the form of a bilayer. The left-handed transmission band of the metamaterial is demonstrated experimentally. The effective index of refraction retrieved from the S parameters is found to be negative within this transmission band. An independent negative refraction experiment supports the existence of the negative index of refraction for the metamaterial.EnglishMetamaterialNegative indexNegative refractionSplit-ring resonatorNegative refractionArticle10.1088/1464-4258/9/9/S13