Powell, A W; Ware, J; Beadle, J G; Cheadle, D; Loh, T H; Hibbins, A P; Sambles, J R (2020) Strong, omnidirectional radar backscatter from subwavelength, 3D printed metacubes. IET Microwaves, Antennas & Propagation, 14 (14). pp. 1862-1868. ISSN 1751-8725

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Abstract

Metallic metacubes formed of six metal plate faces connected via a metal jack are shown to backscatter microwave radiation extremely powerfully. Experimental radar scattering cross-section (RCS) data from 3D printed samples agrees very well with numerical model predictions, showing an RCS of fifteen times the geometrical cross section. The principal resonance of the metacubes demonstrates near-complete independence of the incident angle or polarisation of the radiation, making the metacube an omnidirectional scatterer. The metacubes are fabricated via additive manufacturing from metal-coated polymer, and are extremely lightweight, making them excellent candidates for improving the radar return signals from small objects such as drones and cubesats.

Item Type:	Article
Subjects:	Electromagnetics > Wireless Communications
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1049/iet-map.2020.0178
Last Modified:	27 Apr 2021 14:38
URI:	https://eprintspublications.npl.co.uk/id/eprint/9095