Abstract : The microwave-absorbing properties of a heterostructure consisting of an ordered monolayer of porous glassy carbon spheres were experimentally and theoretically investigated in the Ka-band (26-37 GHz) frequency range. The electromagnetic response of such "moth-eye"-like all-carbon metasurface at a normal incidence angle was modelled on the basis of long-wave approximation. Modelling parameters in the Ka-band were used to estimate and predict the absorption properties of monolayers in free space in the range 1-40 GHz. Experimental and theoretical results demonstrate that a metasurface based on porous glassy carbon spheres is an inert, lightweight, compact and perfectly absorbing material for designing new effective microwave absorbers in various practically used frequency ranges.
https://hal.univ-lorraine.fr/hal-03563201 Contributor : Maria Vanessa Fierro PastorConnect in order to contact the contributor Submitted on : Wednesday, February 9, 2022 - 3:09:32 PM Last modification on : Wednesday, March 9, 2022 - 8:31:01 AM Long-term archiving on: : Tuesday, May 10, 2022 - 6:52:47 PM
D. Bychanok, S. Li, G. Gorokhov, K. Piasotski, D. Meisak, et al.. Fully carbon metasurface: Absorbing coating in microwaves. Journal of Applied Physics, American Institute of Physics, 2017, 121 (16), pp.165103. ⟨10.1063/1.4982232⟩. ⟨hal-03563201⟩