초록
The broadband EM absorbers composed of dielectrics and magnetic materials are designed. The performance of the partial initialization genetic algorithm(PIGA) is improved with three factors such as partial initialization ratios, initialization starting points and scale factors. At the frequency range over 3∼10 GHz, the optimized electromagnetic absorbers designed by using the improved PIGA. The design results obtained by enhanced PIGA's are superior to that of the using GA presented by E. Michielssen with regard to the total depth of composite materials, the depth of magnetics and maximum reflection coefficients.
