RCS prediction and optimization for anomalous reflection metasurfaces using Floquet analysis: measurements

This letter proposes the design and measurement of a periodic metasurface that achieves anomalous reflection with reduced RCS in a given parasitic direction. A previous study proposed a semi-analytical model to predict the RCS behaviour of such a metasurface. However, this first study did not includ...

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Published in:arXiv.org 2024-11
Main Authors: Elineau, Matthieu, Loison, Renaud, Méric, Stéphane, Gillard, Raphaël, Pagani, Pascal, Mazé-Merceur, Geneviève, Pouliguen, Philippe
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Language:English
Subjects:
Exploitation
Metasurfaces
Optimization
Periodic structures
Radar cross sections
Simulation
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container_title arXiv.org
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creator Elineau, Matthieu
Loison, Renaud
Méric, Stéphane
Gillard, Raphaël
Pagani, Pascal
Mazé-Merceur, Geneviève
Pouliguen, Philippe
description This letter proposes the design and measurement of a periodic metasurface that achieves anomalous reflection with reduced RCS in a given parasitic direction. A previous study proposed a semi-analytical model to predict the RCS behaviour of such a metasurface. However, this first study did not include any experimental exploration to verify the theoretical results. To complete this study, this work presents an experimental validation of the proposed design, with a focus on manufacturing and measurement issues. The synthesis, design specifications, fabrication method and experimental setup are presented and discussed. Measurement results are also examined in detail, highlighting some limitations in metasurfaces RCS measurements. The proposed metasurface effectively achieves the predicted RCS level reduction in the considered parasitic direction. The agreement between simulation and experimental results demonstrates the accuracy of the modelling and the efficiency of the optimisation procedure.
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subjects Exploitation
Metasurfaces
Optimization
Periodic structures
Radar cross sections
Simulation
title RCS prediction and optimization for anomalous reflection metasurfaces using Floquet analysis: measurements
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