This paper presents a macroscopic bilateral modeling approach for Reconfigurable Intelligent Surfaces (RIS) capable of simulating various cases, including transmissive and bilaterally reradiating RIS. Building on recent work, the approach is based on a general power balance at the RIS surface according to a few parameters, that accounts for both desired and parasitic reradiation modes on both sides of the surface as well as diffuse scattering and dissipation. The surface effect is described using a spatial modulation coefficient that embodies the wavefront transformation of each reradiation mode, including phase and amplitude modulation. Here the model is proposed and combined with a Huygens-based field calculation method to test its effectiveness in a few applications cases found in the literature.

Kodra S., Vitucci E.M., Barbiroli M., Albani M., Degli-Esposti V. (2024). A macroscopic bilateral modeling approach for reflective and transmissive metasurfaces. Institute of Electrical and Electronics Engineers Inc. [10.23919/EuCAP60739.2024.10500949].

A macroscopic bilateral modeling approach for reflective and transmissive metasurfaces

Kodra S.;Vitucci E. M.;Barbiroli M.;Degli-Esposti V.
2024

Abstract

This paper presents a macroscopic bilateral modeling approach for Reconfigurable Intelligent Surfaces (RIS) capable of simulating various cases, including transmissive and bilaterally reradiating RIS. Building on recent work, the approach is based on a general power balance at the RIS surface according to a few parameters, that accounts for both desired and parasitic reradiation modes on both sides of the surface as well as diffuse scattering and dissipation. The surface effect is described using a spatial modulation coefficient that embodies the wavefront transformation of each reradiation mode, including phase and amplitude modulation. Here the model is proposed and combined with a Huygens-based field calculation method to test its effectiveness in a few applications cases found in the literature.
2024
18th European Conference on Antennas and Propagation, EuCAP 2024
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Kodra S., Vitucci E.M., Barbiroli M., Albani M., Degli-Esposti V. (2024). A macroscopic bilateral modeling approach for reflective and transmissive metasurfaces. Institute of Electrical and Electronics Engineers Inc. [10.23919/EuCAP60739.2024.10500949].
Kodra S.; Vitucci E.M.; Barbiroli M.; Albani M.; Degli-Esposti V.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/971627
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