DISPOSITIVO DI ANTENNA

A 5G antenna device (1) comprising a flat, plate-shaped supporting base (5) in an electrically insulating material, a first terminal (6a) for providing an antenna signal, a second terminal (6b) set at a pre-established reference potential, and a dipole antenna electrical circuit (7) comprising a first portion (10) positioned on the supporting base (5) and having a polygonal shape, a second portion (11) positioned on the supporting base (5) and comprises a first branch (11a) having an elongated shape extending immediately alongside a first side (10a) of the first portion (10). The dipole antenna device (7) further comprises a plate-shaped element (12) made of electrically conductive material that lies on a plane transverse to the supporting base (5) and is electrically connected to the first branch (11a) of the second portion (11). The plate-shaped element (12) is adjacent to the first side (10a) of the first portion (10) and forms a capacitive antenna element therewith.