The design of wideband metamaterial absorber at E band based on defect

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Wang, L.S.^1 ; Xia, D.Y.^2 ; Ding, X.Y.^1 ; Wang, Y.^1

Science and Technology Department, Sanya University, Sanya, Hainan

572022, China^1

Finance and Economics Department, Sanya University, Sanya, Hainan

572022, China^2

关键词: Absorption frequencies;    Absorption property;    Dielectric substrates;    Electromagnetic parameters;    Electromagnetic resonance;    Measurement and control;    Metamaterial absorbers;    Mobile communications;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012061/pdf
DOI  :  10.1088/1757-899X/292/1/012061

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A kind of wideband metamaterial absorber at E band is designed in this paper; it is composed of round metal cells with defect, dielectric substrate and metal film. The electromagnetic parameters of unit cell are calculated by using the finite element method. The results show that the wideband metamaterial absorber presents nearly perfect absorption above 90% with absorption ranging from 65.38GHz to 67.86GHz; the reason of wideband absorption is the overlap of different absorption frequency which is caused by electromagnetic resonance; the size parameters and position of defect has important effect on its absorption property. It has many advantages, such as simply, easy to preparation and so on. It has potential application on aerospace measurement and control, remote data communication, LTE wideband mobile communication and other fields.