Eur. Phys. J. B 81, 263-268 (2011)
https://doi.org/10.1140/epjb/e2011-20114-2

Characterization and electromagnetic response of a ϕ-shaped metamaterial

¹ Laboratory of Solid State Physics and Magnetism, Department of Physics and Astronomy, Katholieke Universiteit Leuven, 3001 Leuven, Belgium
² Quantum Photonic Science Research Center and Department of Physics, Hanyang University, 133-791 Seoul, Korea
³ Institute of Materials Science, Vietnamese Academy of Science and Technology, Vietnam

Corresponding authors: ^a thanhtung.nguyen@fys.kuleuven.be - ^c lamvd@ims.vast.ac.vn

Received: 14 February 2011
Revised: 27 April 2011
Published online: 7 June 2011

Abstract

In this paper we experimentally and numerically study the left-handed behavior in a biplanar metamaterial operating at microwave frequency. The metamaterial consists of ϕ-shaped metallic patterns on both sides of a dielectric spacer. The origin of negative refractive index is elucidated by performing the effective medium analysis. Additionally, the dependence of the left-handed transmission on geometric parameters, such as the periodicities, the shapes of metallic slabs and continuous wires, and the impact of spacer separation, is examined.