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Cloaking of metallic sub-wavelength objects by plasmonic metamaterial shell in quasistatic limit

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2 Author(s)
Noor, A. ; Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester ; Hu, Z.

Cloaking of metallic sub-wavelength cubic and cylindrical objects by isotropic, homogeneous plasmonic cover is investigated and numerically analysed. Significant reductions in both monostatic and bistatic radiation cross section (RCS) have been observed. In the case of cubic object, oblique incidence is also considered. Furthermore, cloaking of rectangular bar has also been investigated. The cloak in all these cases is a spherical plasmonic shell with dielectric and magnetic losses. The simulation results reveal that a lossy shell slightly degrades the cloaking performance; nevertheless the reduction in RCS is still sufficient for potential practical applications.

Published in:

Microwaves, Antennas & Propagation, IET  (Volume:3 ,  Issue: 1 )