| 摘要 |
An antenna comprises at least one half-slot antenna element 12 arranged in a recess, where the recess provides a ground plane wall 16 for the said at least one half-slot antenna element 12. The slot antenna element may be a half-Vivaldi antenna element. Also disclosed is an antenna which comprises at least one antenna element 12 arranged in a recess, where the recess provides a ground plane for the said at least one antenna element and the antenna element 12 comprises a conductive plate arranged perpendicular to the mouth 20 of the recess and is spaced from a wall 16 of the recess to provide a slot 14 between the edge 6 of the conductive plate and the wall 16 of the recess. Further disclosed is an antenna comprising a common ground plane and a plurality of antenna elements 12, where each antenna element comprises a conductive plate arranged perpendicular to the common ground plane and where the edge 6 of each antenna element plate is spaced from the ground plane to provide a slot 14 between the edge 6 of the conductive plate and the common ground plane. The recess may be a tapering polyhedral cone-like formation with linear and/or curved wall portions and a closed end 22 and open end 20 formed by a 3D-printer. The antenna may be used in telecommunication systems. |
