十字栅格与八边形贴片复合双层FSS吸波体研究
Research on Double-Layer Frequency Selective Surface Absorber Based on Cross-Grid and Octagonal Patch Composite Unit
DOI: 10.12677/ms.2026.166143, PDF,    科研立项经费支持
作者: 袁永哲, 薄志伟, 王永华*：长春理工大学机电工程学院，吉林 长春；徐成宇：长春理工大学机电工程学院，吉林 长春；长春理工大学重庆研究院，重庆
关键词: 吸波超材料；频率选择表面；复合单元；Wave-Absorbing Metamaterials； Frequency Selective Surface； Composite Unit
摘要: 本文提出并设计一款融合十字形格栅与八角形金属贴片的复合单元双层频率选择表面(FSS)吸波结构。利用Comsol Multiphysics仿真软件，深入探讨了单元结构尺寸、介质加载、层间距及入射角度对结构吸波性能的影响规律。仿真结果表明，该双层对称结构在12.5 GHz至22 GHz频段内表现出优异的吸波特性，在16.3 GHz和20.9 GHz处产生两个显著谐振点，反射损耗峰值分别达−56.5 dB和−39.9 dB。−10 dB吸收带宽达7.7 GHz，且在0˚~30˚入射角范围内具有良好的角度稳定性。最后，通过印制电路板工艺制备了实物样品，并利用弓形法进行了实验验证。实测曲线与仿真结果吻合良好，证明了该结构在宽带隐身及电磁兼容领域的应用价值。
Abstract: This paper presents a novel double-layer Frequency Selective Surface (FSS) absorber based on a composite unit of a cross-shaped grid and an octagonal patch. Using Comsol Multiphysics simulation software, the effects of unitstructure size, dielectric loading, layer spacing, and incident angle on the absorbing performance are investigated. The results show that the double-layer symmetrical structure exhibits two resonance points at 16.3 GHz and 20.9 GHz, with reflection loss peaks reaching −56.5 dB and −39.9 dB, respectively. The −10 dB absorption bandwidth reaches 7.7 GHz (13.5~21.2 GHz), and the structure maintains good angular stability within a 0˚~30˚ incident angle range. Finally, the physical sample was fabricated by PCB technology and verified by the arch method. The experimental results are in good agreement with the simulation, proving its potential in broadband stealth and electromagnetic compatibility.
文章引用：袁永哲, 徐成宇, 薄志伟, 王永华. 十字栅格与八边形贴片复合双层FSS吸波体研究[J]. 材料科学, 2026, 16(6): 107-115. https://doi.org/10.12677/ms.2026.166143

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