Genetic Algorithm for null synthesizing of circular array antennas by amplitude control

In this paper, the method of imposing of nulls in the radiation pattern of an antenna array is hashed out using Real coded Genetic Algorithm (RGA). Circular array antennas lying on x-y plane is assumed. The array is assumed to have the maximum radiation along positive z-axis. Single and multiple nulls are imposed by optimizing the current amplitude excitations of each element through RGA. Various simulated results are presented and hence nulling performance is analyzed.