三维立方周期阵列石膏基材料吸波性能仿真与实验研究  

Simulation and Experimental Study on Electromagnetic Wave Absorbing Properties of Gypsum-based Materials with 3D Cubic Periodic Arrays

作　　者：朱连诚 冀志江 解帅[1,2] 张远 王静[1,2] 张琎珺 李衎 李飞[4] ZHU Liancheng;JI Zhijiang;XIE Shuai;ZHANG Yuan;WANG Jing;ZHANG Jinjun;LI Kan;LI Fei(China Building Materials Academy,Beijing 100024,China;State Key Laboratory of Green Building Materials,Beijing 100024,China;The Third Security Division of the General Administration of Organ Affairs of the Central Military Commission,Beijing 100120,China;PLA 32378 Troops,Beijing 100072,China)

机构地区：[1]中国建筑材料科学研究总院有限公司,北京100024 [2]绿色建筑材料国家重点实验室,北京100024 [3]中央军委机关事务管理总局第三保障处,北京100120 [4]中国人民解放军32378部队,北京100072

出　　处：《材料导报》2021年第12期12020-12026,共7页Materials Reports

基　　金：绿色建筑材料国家重点实验室预研探索项目(ZA-4)。

摘　　要：基于三维立方周期阵列结构,以乙炔炭黑为吸波剂,设计了一种具有宽频特性的石膏基吸波材料。HFSS(High frequency structure simulator)仿真结果显示,三维周期阵列单元的边长、高度、基层厚度及炭黑质量分数会对材料的吸波性能及有效频段产生显著影响。试验结果显示,对于周期阵列单元边长为10 mm、高度为5 mm、基层厚度为10 mm、炭黑含量为2%的试样,其在4.2~18 GHz范围内的反射率低于-10 dB,有效频带宽度可达13.8 GHz以上。试验结果与仿真结果具有较高的吻合度。该材料的电磁波损耗主要来自于乙炔炭黑的电阻损耗和三维周期阵列的结构效应。Gypsum based electromagnetic wave absorbing material with broadband characteristics was designed,based on the 3D cubic periodic array structure,and acetylene carbon black(CB)was used as the absorbing agent.HFSS simulation results show that the wave absorbing property and effective band can be influenced significantly by the edge length,height of the 3D periodic array cells,the thickness of basic layer,and mass fraction of CB.The experimental results indicate that when the periodic array cell edge length and height is 10 mm and 5mm,basic la-yer thickness is 10mm,and CB mass fraction is 2%,the bandwidth for-10 dB of the sample reaches 13.8 GHz in the frequency range of 4.2-18 GHz.And the simulation results are verified by experimental results.The electromagnetic attenuation of this material can be mainly attributed to the electrical resistance loss of CB and the structural effects of 3D periodic arrays.

关 键 词：三维周期阵列 石膏基材料 吸波 宽频 

分 类 号：TB34[一般工业技术—材料科学与工程]