Broadband Electromagnetic Absorbing Structures Made of Graphene/Glass-Fiber/Epoxy Composite

被引：26
作者：
Marra, Fabrizio [1 ]
Lecini, Julian [1 ]
Tamburrano, Alessio [1 ]
Pisu, Luigi [2 ]
Sarto, Maria Sabrina [1 ]
机构：
[1] Sapienza Univ Rome, Dept Astronaut Elect & Energy Engn, I-00185 Rome, Italy
[2] Leonardo SpA, Div Aircraft, I-10146 Turin, Italy
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2020年 / 68卷 / 02期
关键词：
Composite materials; electromagnetic (EM) absorbers; graphene; graphene nanoplatelets (GNPs); radar-absorbing structures (RASs); REINFORCED COMPOSITES; FIBER COMPOSITES; OXIDE; FABRICATION; DESIGN;
D O I：
10.1109/TMTT.2019.2950223
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Radar-absorbing structures (RASs) with improved mechanical properties and subwavelength thickness are of particular interest for aerospace applications and electromagnetic (EM) interference control. This article proposes a new RAS, made of a graphene-filled lossy laminate (LL) with impedance adapter, having a total thickness less than 4 mm and a normalized absorption bandwidth of 84% in the frequency range 6-18 GHz. The RAS is designed by applying an innovative simulation approach of the graphene-filled LL, which is based on the multiscale Maxwell Garnett model and the effective medium theory. Experimental tests are performed in order to validate the developed model and to assess the absorption properties of the produced RAS, having a minimum reflection of -30 dB and an absorption bandwidth at -10 dB of 10 GHz, with a central frequency of 12 GHz and a graphene nanoplatelets concentration less than 5 g/m(2).
引用
收藏
页码：590 / 601
页数：12
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