Pattern Synthesis of Planar Nonuniform Circular Antenna Arrays Using a Chaotic Adaptive Invasive Weed Optimization Algorithm

Table 5

Design figures of merit obtained in the best (out of 50) runs the six algorithms on three design instances.

Number of elements	Algorithms	Mean SLL (dB)	Max SLL (dB)	Average null depth (dB)	Directivity (dB)
8	CAIWO	−13.158	−10.01	−46.88	9.67
	MIWO	−10.75	−2.17	−46.25	9.14
	IWO	−9.488	−3.61	−34.6	8.27
	DE	−10.34	−1.35	−32.95	8.87
	PSO	−10.23	−1.17	−40.6	8.78
	GA	−9.16	−1.71	−42.2	8.08
10	CAIWO	−16.95	−11.42	−50.16	12.48
	MIWO	−13.78	−4.65	−46.35	11.75
	IWO	−11.35	−5.52	−32.8	9.93
	DE	−12.46	−4.07	−34.4	10.79
	PSO	−12.15	−4.07	−31.1	10.55
	GA	−10.65	−2.18	−30	9.40
12	CAIWO	−18.76	−15.43	−41.015	12.85
	MIWO	−14.23	−5.16	−43.05	12.25
	IWO	−10.99	−4.34	−41.7	9.86
	DE	−11.66	−4.17	−31.4	10.39
	PSO	−11.61	−4.75	−43.55	10.37
	GA	−10.12	−3.68	−32.8	9.21