Optimum Directivity Patterns of Concentric Ring Arrays with Dipole Radiators for Wireless Communications

In the literature survey concentric ring arrays using isotropic radiators are reported. Sufficient data is not available to optimization of the first sidelobe level, null to null beamwidth and directivity. In this paper, the author is proposed the problem of designing concentric ring arrays with practical radiating element. The practical radiating element is considered as dipoles to achieve optimum directional patterns for wireless communications. The numerically simulated patterns are computed and compared with the concentric isotropic ring arrays for different number of concentric rings.