Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:24P3
Session:
Number:24P3-1
Electromagnetic Wave Absorber Optimal Design Based on Improved Particle Swarm Optimization
H. Liu, L. Zhang,
pp.797-800
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
The optimal design of planar multilayered electromagnetic wave absorbers is presented. The optimization process is based on an improved particle swarm optimization (PSO). Assumed that the number of layers is given, in order to obtain an ideal absorber which is thin and has a low reflection coefficient within a wide band of frequencies, the thickness of each layer needs to be optimized as well that each layer needs to be chosen from a given material database. The problem is a classical optimization problem and the optimal design is to find the optimal solution. PSO in comparison with most of optimization algorithms such as Genetic Algorithms is simpler and faster. But the basic form of PSO may not obtain the optimal solution with complex problems. An improved PSO is applied to this design. Simulation results show the validity and effectiveness of this design method.