Unequally spaced linear antenna array synthesis using multi-objective cauchy mutated cat swarm optimization

The process of synthesis of antenna array involves the simultaneous optimization of the conflict parameters such as peak sidelobe level (PSLL) and first null beamwidth (FNBW). In this paper, the multi-objective form of the newly developed Cauchy mutated cat swarm optimization (CMCSO) is developed and proposed to trade-off the PSLL and FNBW. A Pareto-optimal front containing all the compromised solutions is developed using a multi-objective (MO) form of CMCSO, traditional cat swarm optimization (CSO) and particle swarm optimization (PSO). Targeted compromised solutions may be chosen from the optimal Pareto front based on the application at hand. Numerical illustrations show that MO-CMCSO yields superior results as compared to MO-CSO and MO-PSO.