Synthesis of Thinned Planar Concentric Circular Antenna Arrays Using a Modified Artificial Bee Colony Algorithm

The artificial bee colony (ABC) algorithm is a biomimetic optimization based on the intelligent foraging behavior of colony. It has obvious advantages in dealing with complex nonlinear problems. However, random neighborhood search leads to ABC being good at exploration but neglected exploitation. Therefore, modified (MABC) proposed this paper. applied thinned large multiple concentric circular antenna arrays. aim make array obtain narrow beam pattern best peak sidelobe level (PSLL) vertical plane. elements arrays are uniformly excited and isotropic. Two different cases have been considered study for thinning using MABC, one fixed uniform interelement spacing another optimum spacing. In both cases, percentage kept equal or more than 50%. Simulation results compared fully populated illustrate effectiveness our method.