Complementary Folded Arm (CFA) Split Ring Resonator for Dielectric Material Characterization

In this paper, a complementary folded arm (CFA) split ring resonator material dielectric characterization is proposed. The resonator consists of three layers which are ground, substrate and the top layer (micro strip line and CFA). A 50 Ω micro-strip line will be used and CF A is at the top of the microstrip line on the substrate. The frequency response of the unloaded sensor is f
r
= 2.16 GHz. Localization of electric and magnetic field is observed in two separate zones. E-field zone used to determine the real and imaginary part of permittivity, ε while for H-field zone is to obtain the real and imaginary part of permeability, µ of a material. Four prediction models were developed to obtain dielectric properties such as permittivity (εr), permeability (µ r), the electric loss tangent (tan δe) and the magnetic loss tangent (tan δm). In the end of this project, the accuracy of the resonator will be simulated using actual material. As a conclusion, the resonator exhibited an acceptable with 2.5% and 14.3% highest efficiency percentages for permittivity and permeability, respectively.