Abstract: An optimum designing program of multilayer absorbing material is compiled based on Genetic Algorithm（GA）. The program transfers the electromagnetic parameters which measured by vector network analyzer, and can process thickness optimum design of different absorbing materials in the range of 0.5~6.0 GHz. The results show that the best absorbing layers can be easily gained from the electromagnetic parameter database by computing with this program according to the requirement. The multi-constant weight method is very helpful to design the microwave absorbing layers of broad-frequency and high absorption.

Key words: microwave absorbing material, Genetic Algorithm（GA）, optimum design

摘要： 利用遗传算法（GA）编写多涂层优化设计程序，该程序可以调用矢量网络分析仪测量的电磁参数，根据吸波材料的电磁参数对0.5~6.0 GHz范围内不同材料的涂层厚度进行优化设计；讨论了不同的目标函数和厚度优化方法对优化结果的影响，提出多常数权重法建立目标函数。结果表明：此方法可以简单地从材料电磁参数的数据库中，按照设定的要求计算得到最优的电磁波吸收涂层；利用提出的多常数权重法建立的目标函数可以更好的设计宽频带高吸收的电磁波吸收涂层。

关键词: 微波吸收材料, 遗传算法, 材料设计