Comparison of Weighted Sum Fitness Functions for PSO Optimization of Wideband Medium-gain Antennas
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In recent years PSO (Particle Swarm Optimization) has been successfully applied in antenna design. It is well-known that the cost function has to be carefully chosen in accordance with the requirements in order to reach an optimal result. In this paper, two different wideband medium-gain arrays are chosen as benchmark structures to test the performance of four PSO fitness functions that can be considered in such a design. The first one is a planar 3 element, the second one a linear 4 element antenna. A MoM (Method of Moments) solver is used in the design. The results clearly show that the fitness functions achieve a similar global best candidate structure. The fitness function based on realized gain however converges slightly faster than the others.
Zdrojový dokumentRadioengineering. 2012, vol. 21, č. 1, s. 504-511. ISSN 1210-2512
- 2012/1