Triangular and tapered tip effects towards circular split ring EM field response

Abstract

This research paper implements a 3D tetrahedral meshing frequency solver to simulate the electromagnetic effect of triangular tip (TrT) and tapered tip (TaT) added to a circular split gap. Behavior of circular rings placed inside a standard WR159 waveguide with preference to the conventional circular split ring was modelled. TrT and TaT structures optimization and validation was made using five well known algorithm namely PSO, GA, CMAES, IQN and CP. With TaT, the less electrical field sensitivity of the conventional circular split ring improved from 5.19e+04 V/m to 5.36e+04 V/m. While the magnetic field sensitivity value rises from 149 A/m to 218 A/m, a 3.27 % increase. At the same time retaining the resonant frequency well at 6.0 GHz even with TrT and TaT. The approach of this integration can be used to design numerous novel C-Band metamaterials, communication and future millimeter wave applications.