An antenna array (1A, 1B, 1C, 1D) comprising a number of radiating elements (11, 12,..., 1N) and a supporting elongated flat printed circuit board having a substrate and two opposite faces, wherein: - each radiating element (11, 12,..., 1N) is attached to said supporting printed circuit board; - each radiating element (11, 12,..., 1N) is a dipole-like radiating element having a respective axis of symmetry; - the axes of symmetry of said radiating elements (11, 12,..., 1N) are aligned along a direction parallel to a longitudinal axis of said supporting printed circuit board and lie on a longitudinal plane parallel to a longitudinal center plane of said printed circuit board and located between said opposite faces; - said supporting printed circuit board comprises at least one conductive trace on one of said faces, said conductive trace acting as a ground plane for the radiating elements (11, 12,..., 1N); and - for each radiating element (11, 12,..., 1N), said supporting printed circuit board carries a respective dipole feeding line to provide a feeding signal to said radiating element (11, 12,..., 1N) at a feed point located on said printed circuit board and substantially belonging to said axis of symmetry, wherein each radiating element (11, 12,..., 1N) comprises a driven element and a passive element, each of said driven element and said passive element being a conductive cylindrical element, wherein - said driven element comprises a hollow cylindrical body, a top end cap and a bottom end cap, each of said top end cap and said bottom end cap having a respective slot (60, 50) to allow the passage of said supporting printed circuit board, the bottom end cap being soldered to said feed point at a position substantially corresponding to the center of said slot; and - said passive element comprises a hollow cylindrical body and an end cap having a respective slot to allow the passage of said supporting printed circuit board. - each radiating element (11, 12,..., 1N) is attached to said supporting printed circuit board; - each radiating element (11, 12,..., 1N) is a dipole-like radiating element having a respective axis of symmetry; - the axes of symmetry of said radiating elements (11, 12,..., 1N) are aligned along a direction parallel to a longitudinal axis of said supporting printed circuit board and lie on a longitudinal plane parallel to a longitudinal center plane of said printed circuit board and located between said opposite faces; - said supporting printed circuit board comprises at least one conductive trace on one of said faces, said conductive trace acting as a ground plane for the radiating elements (11, 12,..., 1N); and - for each radiating element (11, 12,..., 1N), said supporting printed circuit board carries a respective dipole feeding line to provide a feeding signal to said radiating element (11, 12,..., 1N) at a feed point located on said printed circuit board and substantially belonging to said axis of symmetry, wherein each radiating element (11, 12,..., 1N) comprises a driven element and a passive element, each of said driven element and said passive element being a conductive cylindrical element, wherein - said driven element comprises a hollow cylindrical body, a top end cap and a bottom end cap, each of said top end cap and said bottom end cap having a respective slot (60, 50) to allow the passage of said supporting printed circuit board, the bottom end cap being soldered to said feed point at a position substantially corresponding to the center of said slot; and - said passive element comprises a hollow cylindrical body and an end cap having a respective slot to allow the passage of said supporting printed circuit board.