In this contribution, we study and fully characterize the reduction of the scattering gain when the electromagnetic reflection response of a reflective metasurface is not perfect as designed but affected by a random variation of its surface properties. Here, we consider a metasurface able to reflect a plane wave impinging from theta=-20 degrees towards the direction theta=+40 degrees and affected by a pure-phase electromagnetic random roughness. We characterize the metasurface response introducing a statistical approach describing how much the electromagnetic roughness alters the desired functionality of the MTS under inspection. A proper set of numerical simulations agrees very well with the analytical results, demonstrating the effectiveness of the proposed statistical model.
Stefanini, L., Ramaccia, D., Monti, A., H. -Zarghani, Z., Khalid, M., Toscano, A., et al. (2023). Scattering performances of metasurfaces affected by electromagnetic phase roughness. In Proceedings of the 2023 International Workshop on Antenna Technology (iWAT). 345 E 47TH ST, NEW YORK, NY 10017 USA : IEEE [10.1109/iwat57058.2023.10171787].
Scattering performances of metasurfaces affected by electromagnetic phase roughness
Stefanini, L.;Ramaccia, D.;Monti, A.;Khalid, M.;Toscano, A.;Bilotti, F.;Vellucci, S.;Barbuto, M.
2023-01-01
Abstract
In this contribution, we study and fully characterize the reduction of the scattering gain when the electromagnetic reflection response of a reflective metasurface is not perfect as designed but affected by a random variation of its surface properties. Here, we consider a metasurface able to reflect a plane wave impinging from theta=-20 degrees towards the direction theta=+40 degrees and affected by a pure-phase electromagnetic random roughness. We characterize the metasurface response introducing a statistical approach describing how much the electromagnetic roughness alters the desired functionality of the MTS under inspection. A proper set of numerical simulations agrees very well with the analytical results, demonstrating the effectiveness of the proposed statistical model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
