Metasurfaces for Far-Field Radiation Pattern Correction of Antennas under Dielectric Seamed-Radomes - Université Paris Nanterre
Article Dans Une Revue Materials Année : 2022

Metasurfaces for Far-Field Radiation Pattern Correction of Antennas under Dielectric Seamed-Radomes

Riccardo Cacocciola
  • Fonction : Auteur
Badreddine Ratni
Nicolas Mielec
  • Fonction : Auteur
Emmanuel Mimoun
  • Fonction : Auteur

Résumé

A high-index dielectric radome seam is camouflaged with respect to a low-index dielectric radome panel by tuning the seam with carefully engineered metasurfaces. A transmission-line approach is used to model the metasurface-tuned seam and analytically retrieve the corresponding surface impedance, from which the unit-cell design is then tailored. Full-wave simulations and microwave antenna measurements performed on a proof-of-concept prototype validate the undesired scattering suppression effect in the case of normally and obliquely incident transverse electric and transverse magnetic wave illuminations. Robustness of the proposed solution to fabrication tolerances is also reported. The study presents metasurface-tuning as an easily implementable, frequency adjustable, and polarization insensitive solution to reduce the scattering of dielectric mechanical seams and improve the overall transparency performance of radome structures.
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Dates et versions

hal-04177638 , version 1 (15-01-2024)

Identifiants

Citer

Riccardo Cacocciola, Badreddine Ratni, Nicolas Mielec, Emmanuel Mimoun, Shah Nawaz Burokur. Metasurfaces for Far-Field Radiation Pattern Correction of Antennas under Dielectric Seamed-Radomes. Materials, 2022, 15 (2), pp.665. ⟨10.3390/ma15020665⟩. ⟨hal-04177638⟩
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