A novel resonant metallo-dielectric structure for design of high performance ϵ-μ meta-materials

The paper addresses a magneto-dielectric (ε-μ) meta-material with improved material properties. To accomplish this, a meta-material with a periodic configuration constructed of small metallo-dielectric transmission-line resonators is proposed. At resonance, the metallo-dielectric inclusions are equivalent to parallel LC circuits magnetically coupled to a transmission line model of the medium. It is demonstrated that the permeability of the proposed structure has a relatively larger bandwidth compared to the conventional resonant loop circuit design. A larger quality factor (Q) and smaller loss tangent for the new design is predicted.