Patent ID: 8704727

Claim:
Multibeam antenna for emitting/receiving a radiofrequency signal in a plurality of directions in at least one band of frequencies, the antenna comprising: a ground plane (P); a dielectric substrate ( 11 ), having a permittivity ∈ 1 , the substrate ( 11 ) being arranged on the ground plane (P); a plurality of assemblies of antenna elements arranged on the substrate ( 11 ), each assembly corresponding to a direction of the antenna; wherein the antenna further comprises a dielectric superstrate ( 12 ), having a permittivity (∈ 2 ) greater than the permittivity (∈ 1 ) of the substrate ( 11 ), arranged on the assemblies of antenna elements, and in that the assemblies are interleaved one under the other so as to form a column of antenna elements in a periodic manner, the period being equal to the number of direction of the antenna.