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Communication Dans Un Congrès Année : 2023

Metasurface-Based Low-Dispersive Leaky-Wave Antenna

Résumé

In this communication, we present a low-dispersive leaky-wave antenna consisting of a parallel-plate-waveguide structure loaded by a modulated metasurface and a dense medium. The low-dispersive leaky-wave mode is engineered by a proper design of the metasurface and the chosen permittivity of the dense medium. The dispersion analysis is based on the transverse resonance technique and validated through full-wave simulations. A dense medium with a prism shape and a relative permittivity of 12 is used to radiate a beam pointing at 28.3° in elevation in the Ks-band (27-33 GHz) with only 0.5° variation over a 20% relative bandwidth. The leaky-wave mode supported by the structure is efficiently launched by using a compact quasi-optical system. The full antenna dimensions are 225×175×57 mm3 with an expected average gain of 27.5 dBi and total efficiency greater than 55%. © 2023 IEEE.
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Dates et versions

hal-04282465 , version 1 (13-11-2023)

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Citer

Adham Mahmoud, Mauro Ettorre, Jorge Ruiz Garcia, Oscar Quevedo-Teruel, Anthony Grbic. Metasurface-Based Low-Dispersive Leaky-Wave Antenna. 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023, Jul 2023, Portland, United States. pp.1855-1856, ⟨10.1109/USNC-URSI52151.2023.10237453⟩. ⟨hal-04282465⟩
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