Centre National De La Recherche Scientifique

Sorbonne Université

Ecole Superieure De Physique Et De Chimie Industrielles De La Ville De Paris

Paris Sciences Et Lettres

Ultimetas

Other

Universitá Degli Studi Di Siena

Torino Politecnico

Charlotte Tripon-Canseliet

Jean Chazelas

Stefano Maci

Cristian Della Giovampaola

Giuseppe Vecchi

A metasurface device includes an antenna element formed on the front surface of a substrate, the antenna element comprising a two-dimensional array of electrically conductive patches spaced from one another and having dimensions smaller than the operating wavelength of an emission and/or reception device, the antenna element being able to radiate in a direction having a component perpendicular to the front surface of the substrate when the ground structure has a ground plane function, the substrate comprising a layer, called a connection layer, made of photoconductive semiconductor material, in direct physical contact with the conductive patches, the semiconductor material being insulating when it is not illuminated and able to be conductive when it is illuminated at a reconfiguration wavelength.

Metasurface device

A metasurface device includes a ground structure able to have a ground plane function, the ground structure being able to be alternately in an insulating state, wherein it prevents the propagation of the surface wave over the front surface of a substrate so as to prevent the antenna element from radiating, and in a conductive state, wherein the ground structure has the ground plane function, allowing the propagation of the surface wave over the front surface of the substrate from the emission/reception device to the conductive patches, or vice versa, the ground structure being able to change from the insulating state to the conductive state through illumination of the ground structure at a wavelength called a switching wavelength.

Reconfigurable antenna assembly having a metasurface of metasurfaces

Growing community of inventors

Issy les Moulineaux, France

Charlotte Tripon-Canseliet