基于电抗补偿的超材料吸波器的设计与制备

doi:10.3969/j.issn.1001-1935.2026.02.014

耐火材料 ›› 2026, Vol. 60 ›› Issue (2): 161-166.DOI: 10.3969/j.issn.1001-1935.2026.02.014

基于电抗补偿的超材料吸波器的设计与制备

谭宇遥^1,2), 郜兴昊¹⁾, 乔梦珂^1,2), 李享成^1,2)

1)武汉科技大学高温电磁材料与结构教育部重点实验室湖北武汉 430081
2)武汉科技大学先进耐火材料全国重点实验室湖北武汉 430081

收稿日期:2025-05-06 出版日期:2026-04-15 发布日期:2026-04-15
通讯作者: 乔梦珂,女,1995年生,博士,讲师。E-mail:qiaomengke@wust.edu.cn 李享成,男,1978年生,博士,教授。E-mail:lixiangcheng@wust.edu.cn
作者简介:谭宇遥:男,2001年生,硕士研究生。E-mail:1595161043@qq.com
基金资助:
国家重点研发计划(2024YFB3714600);国家自然科学基金项目(52304410 和 51972242);湖北省自然科学基金创新群体项目(2020CFA038);湖北省重点研发计划项目(2020BAA028);湖北省重大项目(2023BAA003)和湖北省青年拔尖人才培养计划资助。

Design and fabrication of metamaterial absorber based on reactance compensation

Tan Yuyao, Gao Xinghao, Qiao Mengke, Li Xiangcheng

First author’s address:Key Laboratory of High Temperature Electromagnetic Materials and Structure of MOE,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China

Received:2025-05-06 Online:2026-04-15 Published:2026-04-15

摘要/Abstract

摘要： 感应炉、微波加热装置工作时会产生强电磁场,其中C波段(4~8 GHz)的电磁波能有效穿透部分炉衬材料,在内部形成涡流或介电加热,导致材料局部过热或结构损伤。因此,设计出在C波段高温微波吸收性能的材料对于提高设备安全性、延长炉衬使用寿命具有重要意义。通过等效电路模型分析了频率选择表面(Frequency Selective Surface,FSS)电磁响应特性,基于电抗补偿设计了一种八角星-方环FSS结构超材料吸波器,并对其吸波性能和损耗机制开展研究。分析发现,所设计的超材料吸波器凭借电抗补偿作用,实现了良好的阻抗匹配,并且在谐振损耗和欧姆损耗的共同作用下,反射损耗低于-10 dB的有效吸收范围涵盖整个C波段,而且 4.8 GHz处的吸收率大于0.99。同时,该结构在0°~90°具有良好的斜入射稳定性。试验测试结果显示,该超材料吸波器的反射损耗与仿真结果吻合度达90%以上。所设计的FSS超材料吸波器在减少电磁干扰、延长炉体寿命等方面具有较高的应用潜力。

关键词: 频率选择表面, 等效电路模型, 电抗补偿, 超材料吸波器, 入射角稳定性

Abstract: Strong electromagnetic fields can be generated during the operation of induction furnaces and microwave heating devices.Among them,C-band electromagnetic waves(4-8 GHz) can effectively penetrate into some lining materials and induce eddy currents or dielectric heating inside,leading to local overheating or structural damage of the materials.Therefore,developing materials with high-temperature microwave absorption performance in the C-band is of significant importance for enhancing equipment safety and prolonging the service life of furnace linings.The electromagnetic response characteristics of a frequency selective surface (FSS) were analyzed through equivalent circuit modeling.Based on reactance compensation,an octagonal star-square loop FSS structured metamaterial absorber was designed,and its wave absorption performance and loss mechanism were investigated.The analysis reveals that the metamaterial absorber achieves effective impedance matching through reactance compensation.Under the combined effect of the resonant loss and ohmic loss,the effective absorption band with reflection loss below -10 dB covers the entire C-band,and the absorptivity at 4.8 GHz exceeds 0.99.Meanwhile,the structure exhibits favorable stability against oblique incidence from 0° to 90°.The experimental results indicate that the reflection loss of this metamaterial absorber is more than 90%.The designed FSS metamaterial absorber has high application potential in reducing electromagnetic interference and prolonging the service life of furnace bodies.

Key words: frequency selective surface, equivalent circuit model, reactance compensation, metamaterial absorber, incident angle stability

中图分类号:

TB34

谭宇遥, 郜兴昊, 乔梦珂, 李享成. 基于电抗补偿的超材料吸波器的设计与制备[J]. 耐火材料, 2026, 60(2): 161-166.

Tan Yuyao, Gao Xinghao, Qiao Mengke, Li Xiangcheng. Design and fabrication of metamaterial absorber based on reactance compensation[J]. Refractories, 2026, 60(2): 161-166.

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基于电抗补偿的超材料吸波器的设计与制备

Design and fabrication of metamaterial absorber based on reactance compensation

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