Backtracking Search Optimization Algorithm for Synthesis of Concentric Circular Antenna Arrays

Table 3

MSLL, FNBW, and DRR values obtained by BSA and other optimization techniques EP [1], PSOCFIWA [1], PSO [1], BFO [3], and BGA [3] for CCAAs with central element.

Figures	Algorithms	MSL (dB)	FNBW (degree)	DRR
Figure 13	BSA	−43.61	91.20	9.1827
	EP [1]	−39.66	97.70	14.6883
Figure 14	BSA	−35.20	79.14	5.5928
	PSOCFIWA [1]	−32.62	80.00	Inf.
Figure 15	BSA	−35.08	79.01	4.8054
	PSO [1]	−30.08	82.37	4.8054
Figure 16	BSA	−35.89	79.89	4.5005
	BFO [3]	−34.18	81.50	4.8869
Figure 17	BSA	−31.86	75.45	6.9589
	BGA [3]	−29.06	78.30	7.0569