Synthesis of Thinned Concentric Circular Antenna Arrays Using Modified TLBO Algorithm

Figure 7

Nonuniform CCAA optimized by MTLBO for SLL reduction in basically extended space. (a) Configuration and excitation of a 152-element nonuniform array and (b) the related array factor with SLL = −20.93 dB and FNBW = 0.13.

(a)

(b)