Optimization of Sparse Concentric Ring Arrays for Low Sidelobe

Table 1

The fitting data: element number (), ring radii (), actual element number in the rings (), maximum element number (, and element retention rate ().

method	PSLL (dB)			1	2	3	4	5	6
Opt [16]	-27.82	142		0.76	1.36	2.09	2.99	3.78	4.70
				9	17	25	31	26	33
				9	17	26	37	47	59
				9/9	16/16	25/26	31/37	26/47	33/59