In this paper, practical implementation of metasurfaces providing perfect anomalous reflection (i.e. reflection to a non specular direction with no higher order modes excited) is discussed with reference to metasurfaces consisting of a metallic cladding over a grounded dielectric slab. The metallic cladding is modeled through a continuous penetrable impedance sheet, while the grounded slab is accounted for through the Green's function. It is shown that an exact solution without polarization transformation only exists for the case of retroreflection, while a solution with polarization conversion can be found for arbitrary incidence and reflection angles. The derived solutions are implemented through a distribution of patches and full wave simulations are performed to confirm their effectiveness.

Yepes, C., Faenzi, M., Maci, S., Martini, E. (2021). Synthesis of passive lossless metasurfaces for perfect anomalous reflection. In 2021 Fifteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) (pp.248-250). New York : Institute of Electrical and Electronics Engineers Inc. [10.1109/Metamaterials52332.2021.9577079].

Synthesis of passive lossless metasurfaces for perfect anomalous reflection

Faenzi M.;MacI S.
;
Martini E.
2021-01-01

Abstract

In this paper, practical implementation of metasurfaces providing perfect anomalous reflection (i.e. reflection to a non specular direction with no higher order modes excited) is discussed with reference to metasurfaces consisting of a metallic cladding over a grounded dielectric slab. The metallic cladding is modeled through a continuous penetrable impedance sheet, while the grounded slab is accounted for through the Green's function. It is shown that an exact solution without polarization transformation only exists for the case of retroreflection, while a solution with polarization conversion can be found for arbitrary incidence and reflection angles. The derived solutions are implemented through a distribution of patches and full wave simulations are performed to confirm their effectiveness.
2021
978-1-7281-5018-5
Yepes, C., Faenzi, M., Maci, S., Martini, E. (2021). Synthesis of passive lossless metasurfaces for perfect anomalous reflection. In 2021 Fifteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials) (pp.248-250). New York : Institute of Electrical and Electronics Engineers Inc. [10.1109/Metamaterials52332.2021.9577079].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1175850