Coronavirus-Like All-Angle All-Polarization Broadband Scatterer
Communications Engineering 2023
Anna Mikhailovskaya, Dmytro Vovchuk, Konstantin Grotov, Denis S Kolchanov, Dmitry Dobrykh, Konstantin Ladutenko, Vjačeslavs Bobrovs, Alexander Powell, Pavel Belov, Pavel Ginzburg

Creeping waves traveling around a volumetric electromagnetic scatterer provide a significant contribution to its radar cross-section. While quite a few efforts were devoted to suppressing creeping waves as a part of radar countermeasures, here we utilize specially engineered creeping waves to our advantage to create broadband, all-angle, and polarization scatterers. Metalized spherical surfaces, patterned with corona virus-like spikes are designed to provide a broadband constructive interference between the specular reflection and creeping waves, elevating the scattering cross-section. The demonstrated miniature corona scatterers utilize both resonant cascading phenomena and traveling wave interference to tailor electromagnetic interactions, outperforming a resonant dipole in terms of amplitude and bandwidth quite significantly. Our experimental samples are fabricated with an additive manufacturing technique, where a 3D-printed plastic skeleton is subsequently metalized. Micron-thick layers allow governing electromagnetic interactions as if the entire object was made of solid metal. Lightweight, all-angle, all-polarization, and broadband compact scatterers such as these, reported here, have numerous applications, including radar deception, electromagnetic beckoning, and many others.


Keywords
Creeping wave, Scattering, Superscattering, Genetic algorithms, Radars
DOI
10.1038/s44172-023-00116-w
Hyperlink
https://www.nature.com/articles/s44172-023-00116-w

Mikhailovskaya, A., Vovchuk, D., Grotov, K., Kolchanov, D., Dobrykh, D., Ladutenko, K., Bobrovs, V., Powell, A., Belov, P., Ginzburg, P. Coronavirus-Like All-Angle All-Polarization Broadband Scatterer. Communications Engineering, 2023, Vol. 2, Article number 76. ISSN 2731-3395. Available from: doi:10.1038/s44172-023-00116-w

Publication language
English (en)
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