Circular ring frequency selective surface: A novel synthesis technique

In this paper, a simple synthesis method of the circular ring frequency selective surface has been discussed. However, the proposed technique is used to design circular ring frequency selective surface at 3GHz, 15 GHz and 26 GHz and analytical results of each frequency of interest has been supported by simulation results, which has been performed by using CST Microwave Studio a commercially available simulator based on the finite integral technique. For validation of the results, Ansoft Circuit Simulator has also been used to obtain the reflection and transmission coefficient through the values of inductance and capacitance, which have been achieved in the analysis process. Moreover, the effect of dielectric substrate as well as the effect of conductor thickness on the performance of frequency selective surface has also been discussed.