Optimal design of circular antenna array using genetic algorithms

This paper presents the design of circular antenna array with isotropic radiators by optimization using genetic algorithms. The problem consists in the obtaining of an imposed radiation pattern starting from a uniform circular antenna array. The goal is achieved using non-uniform distances between the circles which the radiators are disposed on and a non-uniform distribution of currents through the radiators on the successive circles. The work results and the paper conclusions reveal advantage of our approach versus the uniform circular antenna array. Also an important result is the reduction of the number of variables in the fitness function, which creates good premises for the implementation of real-time algorithms useful in complex/dynamic adaptive arrays.