Synthesis of Thinned Concentric Circular Antenna Arrays Using Modified TLBO Algorithm

Figure 4

Nonuniform CCAA optimized by MTLBO for SLL reduction in regular space. (a) Configuration and excitation of a 130-element nonuniform array and (b) the related array factor with SLL = −19.93 dB and FNBW = 0.13.

(a)

(b)