A CAD model of triangular Split Ring Resonator based on equivalent circuit approach

In the recent decade, metamaterials have become one of the popular areas of interest. Some of the various structures of Split-Ring Resonators (SRR) we have come across are circular, square, spiral and omega shaped. All these structures produce effective permeability and permittivity as negative over a certain range of frequencies. In this paper, a new structure of triangular split ring resonator with edge-coupling is proposed. The structure consists of two equilateral concentric triangles made of metal with dielectric medium filled in the gaps. The advantage of this structure includes the reduction in size of the SRR and the wide range of resonant frequencies possible. The layout or the structure with the equivalent circuit and the Computer Aided Design model (CAD) design are presented. The variation of the resonant frequencies with respect to the conductor and dielectric width is also shown.