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Lv, Chuang; Ding, Pei; Tian, Ximin; Li, Yan; Shao, Li; Zeng, Fanguang; Wang, Junqiao, E-mail: dingpei@zua.edu.cn2020
AbstractAbstract
[en] Conventional metasurface carpet cloak generally has a narrow working bandwidth and a small incident angle range, which is far from meeting the requirements of modern military for broadband and wide-angle cloaking. Based on graphene apertures and graphene patches, we propose the design of metasurface carpet cloaks for terahertz wave and explore their application potential in realizing broadband and wide-angle cloaking. Simulation results demonstrate that the carpet cloaks based on graphene apertures and patches can achieve a large working bandwidth of 35.7% and 52.6%, and a wide angular span of ±30° and ±40°, respectively. The cloaking performance and the working bandwidths of the two graphene metasurface carpet cloaks can be tuned by changing the graphene Fermi energy uniformly. The carpet cloak constructed by graphene patches has a larger bandwidth and a wider angle domain than that by graphene apertures, which can be understood by comparing the phase dispersion of the two graphene metasurfaces. (paper)
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Available from http://dx.doi.org/10.1088/1361-6463/ab6d1d; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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