用遗传算法设计宽带薄层微波吸收材料

Design of Broadband,Thin-Layer Radar Absorbing Materials Using Genetic Algorithms

针对雷达吸波材料 (RAM)的吸收频带宽和厚度薄的优化目标 ,引入动态跟踪变量约束条件和可动态扩展编码长度等技术 ,采用基本遗传算法建立了在任意给定的厚度范围内对电磁波的吸收达到特定的反射损耗值有最大合格带宽的多层RAM的优化设计方法 .并结合研制的实际吸波材料建立的电磁参数数据库优化设计出了宽带、薄层的涂敷型RAM .用本文建立的优化设计方法可以实现宽带薄层RAM的优化设计 .

The optimized method to synthesize the multi-layered radar absorbing materials with a maximum bandwidth satisfied by a special value of reflection loss to electromagnetic wave in a given range of thickness is established using the simple genetic algorithms, into which both dynamically tracing variable restricting conditions and dynamically extending the coding length are incorporated for the first time. The thin multi-layered microwave absorbing coatings with a broad bandwidth over a given range of frequencies are obtained based on the database of electromagnetic parameters for the absorbers prepared in our lab. The optimized design method can be extended to synthesize thin-layered, lightweight, broadband and strong-absorbing radar absorbing materials.