Table 1: Design objectives and simulated results for Problem 1.

Design parametersFlat-top beam Pencil beam
DesiredObtained by MOEA/D-DEObtained by MOEA/D-IWODesiredObtained by MOEA/D-DEObtained by MOEA/D-IWO

Side lobe level (SLL, in dB)−25.00−25.46−26.13−30.00−29.56−30.50
Half-power beam width (HPBW, in -space)24°24.2°24°6.8°6.8°6.8°
Beam width at SLL (BW, in -space)40°41.6°40.2°20°20°20°
Ripple (in dB, )0.500.500.49N/AN/AN/A