Reconfigurable Sparse Metasurface: Beamforming Beyond Phase Gradient Heuristics

Vladislav Popov (1) , Badreddine Ratni (2) , Fabrice Boust (1, 3) , Shah Nawaz Burokur (2)

1 SONDRA - Sondra, CentraleSupélec, Université Paris-Saclay
2 LEME - Laboratoire Energétique Mécanique Electromagnétisme
3 DEMR, ONERA, Université Paris Saclay [Palaiseau]

We present a design of a reconfigurable sparse metasurface operating at microwave frequencies (X-band). The operating principle of the metasurface does not rely on established phase gradient along its surface, it allows one to overcome common limitations of the phase-gradient-based devices. Instead, we have developed a rigorous microscopic approach that allows one to take into account the interaction between the neighboring elements and engineer the individual response of each scatterer to meet a required functionality. By varying the applied bias voltage, we experimentally demonstrate beam steering as well as generation and steering of two (and more) beams with a single feeding horn antenna.

Mots clés: METAMATERIALS; REFLECTARRAY; ELECTRONICALLY SCANNED ARRAY; SPARSE METASURFACES; METAMATERIALS

Mots clés: METAMATERIAUX; ANTENNE REFLECTEUR; ANTENNE BALAYAGE ELECTRONIQUE; METASURFACE; METAMATERIAUX

Domaines: Electronique

Vladislav Popov, Badreddine Ratni, Fabrice Boust, Shah Nawaz Burokur. Reconfigurable Sparse Metasurface: Beamforming Beyond Phase Gradient Heuristics. 14th European Conference on Antennas and Propagation (EUCAP 2020), Mar 2020, COPENHAGUE, Denmark. ⟨hal-02907061⟩