An optimal LAA subsystem designed using Gravitational Search Algorithm

A Linear Array Antenna (LAA), a subsystem of a Wireless Communication System (WCS), with 12 number of dipole elements are optimally designed using Gravitational Search Algorithm (GSA). GSA being one of the suitable optimisation algorithms, used to optimise many design parameters of this subsystem to get a number of desired performance parameters using a simple weighted sum type multi-objective function. The LAA subsystem is designed here, mainly to realise high directivity, high front-to-maximum-side-lobe-level, and low half power beam width for WCS application at ultra high frequency. The LAA designed using GSA is also validated using MININEC for transparency. The successful optimal design approaches, application, and comparative study of this system with an un-optimised system presented here can also be extended to other antennas.