Balanced right/left-handed mixtures of quasi-planar chiral inclusions

TL;DR

This paper introduces novel quasi-planar chiral inclusions that can be used to create bi-isotropic metamaterials with balanced electromagnetic properties, enabling positive/negative refractive index with good bandwidth and free-space matching.

Contribution

It proposes a new design of quasi-planar chiral inclusions with balanced polarizabilities for advanced metamaterial applications.

Findings

Metamaterials with balanced positive/negative refractive index can be constructed.

The inclusions are feasible with standard photo-etching techniques.

The resulting metamaterials exhibit good bandwidth and matching to free space.

Abstract

Some novel quasi-planar chiral inclusions, feasible from standard photo-etching techniques, are proposed. It is shown that such inclusions can be designed in order to present balanced electric, magnetic and magneto-electric polarizabilities. Using these inclusions, random and periodic bi-isotropic artificial metamaterials exhibiting a balanced positive/negative refractive index can be build up. These metamaterials would exhibit reasonable bandwidths and excellent matching to free space.