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使用等效模型可以大大简化蜂窝吸波结构的设计复杂度,但等效模型的误差会对设计的结果产生影响。基于单轴各向异性介质中的电波传播理论和粒子群优化算法,通过定义更符合实际的随频率变化的相对误差,对不同情况下Hashin-Shtrikman(HS)模型的误差对蜂窝吸波结构优化设计结果的影响进行研究。结果表明,HS模型的误差会在一定程度上影响蜂窝吸波结构的优化结果,特别是当电磁波斜入射时,由于纵向传播常数受到横向等效模型误差的影响较大,而受到纵向等效模型的影响较小,所以优化结果也主要受到横向等效模型误差的影响。
The use of equivalent models can greatly simplify the design complexity of honeycomb structures, but errors in equivalent models can have an impact on the design’s results. Based on the wave propagation theory and particle swarm optimization algorithm in uniaxial anisotropic media, by defining a more realistic relative error with frequency variation, the error of Hashin-Shtrikman (HS) model in different cases is optimized for honeycomb absorbing structure Study the impact of design results. The results show that the error of the HS model will affect the optimization results of the honeycomb structure to a certain extent. Especially when the electromagnetic wave is obliquely incident, the longitudinal propagation constant is greatly affected by the transverse equivalent model error and is affected by the longitudinal equivalent model The effect of the optimization is also mainly affected by the error of the transverse equivalent model.