文慧鹏,吕晓龙,郭云胜

• 1:内蒙古科技大学理学院

摘要(Abstract)：

使用花形镂空磁性复合材料吸波片和背板金属设计了一种微波宽带超材料吸波器，该吸波器能实现与自由空间的阻抗匹配的同时，可以改变电磁场在吸波片中的分布，有效地将入射场能量耗散在花形镂空结构边缘，实现宽带和高吸收率。COMSOL Multiphysics软件仿真表明：在厚度为3.18 mm的磁性复合材料吸波片上，刻有周期为10 mm,长、短半轴分别为6.3和2 mm的椭圆形花瓣镂空结构时，吸收率大于90%的带宽可达到12.6 GHz。对花形超材料吸波器进行加工与实验测试，其吸收率和带宽与仿真结果基本吻合。镂空结构不仅可以拓宽吸收带宽，也能够减轻吸波器的重量，可在电磁吸波领域内具有广泛的应用前景。

关键词(KeyWords)： 磁性吸波材料;花形超材料;阻抗匹配;反射损耗;宽带吸收

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51862027);; 内蒙古自然科学基金(2022QN01005)

作者(Author): 文慧鹏,吕晓龙,郭云胜

DOI: 10.14106/j.cnki.1001-2028.2023.0147

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