Sector Beam Synthesis in Linear Antenna Arrays using Social Group Optimization Algorithm

Abstract

The sector beam based radiation patterns have almost flat top in a two dimensional pattern. It is always a challenging task to synthesize such patterns. In this paper, the sector beams are generated using recently developed evolutionary computing tool known as social group optimization algorithm (SGOA). The technique involving both the amplitude and phase as design parameters is used and both the parameters of 20 elements of linear antenna array (LAA) are determined using the algorithm. The results are analysed in terms of radiation pattern plots. The simulations are carried out in Matlab.