A Creative Algorithm for Optimizing and it's Application in Communication

A design problem of non-uniform circular antenna arrays for maximum reduction of both the side lobe level (SLL) and rst null beam width (FNBW) is dealt with. This problem is modeled as a simple optimization problem. The method of Fire y algorithm (FFA) is used to determine an optimal set of current excitation weights and antenna inter-element separations that provide radiation pattern with maximum SLL reduction and much improvement on FNBW as well. Experimental results show considerable reductions of both the SLL and FNBW with respect to those of the uniform case and some standard algorithms GA, PSO and SA applied to the same problem.