Using a 3D metamaterial to enhance surface wave propagation in HF band

Quentin Herbette (1) , Nicolas Bourey (1) , Muriel Darces (2) , Marc Hélier (2) , Stéphane Saillant (1) , Michel Menelle (1)

1 DEMR, ONERA, Université Paris Saclay [Palaiseau]
2 GeePs - Laboratoire Génie électrique et électronique de Paris

This paper deals with the characterization of a 3D metamaterial structure to enhance the surface wave radiation of transmission antennas used with HF surface wave radars. The innovation is to use a corrugated surface with a negative effective permittivity to launch surface waves. In order to verify the predicted behaviour of this metamaterial antenna, near-field measurements were carried out at scale 1:100 in UHF band and scale 1:1 in HF band. Measurements at 1 GHz were performed on a small scale mock-up in a semi-anechoic chamber. The HF characterization was carried out outdoors thanks to an on-board measuring system on a Unmanned Aerial Vehicle (UAV) specially developed for this testing. The results are presented and allow to confirm the expected radiation of the system.

Mots clés: ANTENNE; BANDE HF; MESURE CHAMP PROCHE

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Quentin Herbette, Nicolas Bourey, Muriel Darces, Marc Hélier, Stéphane Saillant, et al.. Using a 3D metamaterial to enhance surface wave propagation in HF band. EUCAP 2021, Sep 2021, Dusseldorf, Germany. ⟨hal-03231373⟩