An experimental study of the effects of various parameters on the resonant and efficiency of circular split-ring resonators

Single split-ring resonators has a great interest due to their refractive index facility. In this paper we provide a comprehensive study, supported with experimental data, that addresses the effect of the type of the substrate and the geometric parameters on the resonant frequency and the quality of the design. The measurements are carried out using quasi-optical technique in mm-wave frequency range. We also provide recommendations concerning the main factors that should be considered in designing split open ring resonators at mm-wave frequency range.