Tuning methods for metamaterials

Abstract

We discuss a novel tuning method based on continuous adjustment of metamaterial lattice parameters. This method provides for remarkable tuning of transmission characteristics through a subtle displacement of metamaterial layers. While the effective medium theory predicts correctly the general tuning characteristics, it turns out that the particular tuning pattern is determined by the peculiarities of near-field interaction between the metamaterial elements. We describe the modes of this interaction and provide qualitative explanations to the performance observed numerically and experimentally. Show more