Barium ferrite microwave absorbing coating based on metamaterial design

被引：1
|
作者：
Gao Hai-tao [1 ]
Wang Jian-jiang [1 ]
Li Ze [1 ]
机构：
[1] Army Engn Univ, Adv Mat Inst, Shijiazhuang 050003, Hebei, Peoples R China
来源：
CAILIAO GONGCHENG-JOURNAL OF MATERIALS ENGINEERING | 2019年 / 47卷 / 01期
关键词：
barium ferrite; metamaterial; absorbing coating; absorbing mechanism; ELECTROMAGNETIC-WAVE; COMPOSITE; IMPROVEMENT;
D O I：
10.11868/j.issn.1001-4381.2018.000447
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A barium ferrite microwave absorbing coating based on metamaterial structure was designed. The influence of metamaterial structure on the absorbing properties of this coating was analyzed, and the absorbing mechanism of coating was studied and discussed. Through simulation, it is found that the absorbing properties of barium ferrite have been greatly enhanced with metamaterial structure. The optimum value of the coating thickness(2.5mm) and sheet resistance(70 Omega/square) are unique, meanwhile, the widest absorbing bandwidth of the coating is achieved. There exist two absorption peaks and the reflection loss can reach -10dB within the frequency range of 8-18GHz. The results show that the absorbing properties of barium ferrite are improved immensely with metamaterial structure design.
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收藏
页码：70 / 76
页数：7
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