Abstract:

In order to deal with the optimization of complex electromagnetic problems, beginning with the theory of particle swarm optimization, by analyzing the convergence of the algorithm and its limitations, the performance of PSO (Particle Swarm Optimization )was improved, parameters tracking was combined, and PSO-PTS (Particle Swarm Optimization Parameters Tracking Strategies)hybrid algorithm was proposed. The method can effectively reduce the search region of PSO algorithm, ensure the uniformity of solution, enhance the computing speed and the accuracy of solution. Basic theory, math model and predict step of the algorithm was introduced. E-shaped dualfrequency microstrip antenna by using PSO-PTS hybrid algorithm was simulated. The results show that the antenna designed by this metheod can sufficiently realize the demand of miniaturization. 

Key words: particle swarm optimization, parameters tracking, microstrip antenna, dualfrequency