Amplitude and phase adaptive nulling with a genetic algorithm for array antennas

This paper researchs an efficient by using the genetic algorithm apply in amplitude and phase to adaptive nulling for phase array antennas. A genetic algorithm adjusts some of the least significant bits of the beam steering phase shifters and amplitude weights in order to minimize the total output power and place nulling in the jammes. Using a few bits for nulling speeds convergence of the algorithm and limits pattern distortions. Various results are presented to show the advantages of this approach.