A node in a wireless communication system, the node comprising at least one antenna arrangement, each antenna arrangement comprising a first horizontal array antenna with at least one first horizontal antenna port, a second horizontal array antenna with at least one second horizontal antenna port, a first vertical array antenna with at least one first vertical antenna port and a second vertical array antenna with at least one second vertical antenna port, each horizontal array antenna port (4, 6) being connected to a corresponding set of horizontal antenna elements (11a, 11b, 11c, 11d; 12a, 12b, 12c, 12d) arranged along a horizontal extension, and each vertical array antenna port (8, 10) being connected to a set of vertical antenna elements (13a, 13b, 13c, 13d; 14a, 14b, 14c, 14d) arranged along a vertical extension, which vertical extension is perpendicular to the horizontal extension, each set of horizontal antenna elements (11a, 11 b, 11c, 11 d; 12a, 12b, 12c, 12d) being arranged to radiate a main beam having a half-power beamwidth in an elevation direction, around the horizontal extension, which exceeds its half-power beamwidth in an azimuth direction, around the vertical extension, with at least a factor two, and each set of vertical antenna elements being arranged to radiate a main beam having a half-power beamwidth in the azimuth direction which exceeds its half-power beamwidth in the elevation direction with at least a factor two, the first horizontal array antenna and the first vertical array antenna constituting a first antenna pair (3, 7), and the second horizontal array antenna and the second vertical array antenna constituting a second antenna pair (5, 9), characterized in that a first horizontal antenna port is connected to a first polarization in the corresponding antenna elements (11a, 11 b, 11c, 11 d) and a first vertical antenna port is connected to a second polarization in the corresponding antenna elements (13a, 13b, 13c, 13d), and where a second horizontal antenna port is connected to the second polarization in the corresponding antenna elements (12a, 12b, 12c, 12d), and a second vertical antenna port is connected to the first polarization in the corresponding antenna elements (14a, 14b, 14c, 14d), the first polarization and the second polarization being mutually orthogonal, where said first horizontal antenna port and said first vertical antenna port are connected in phase, and where said second horizontal antenna port and said second vertical antenna port are connected with opposite phases, where, with respect to a common symmetry point, each antenna element (11a, 11b, 11c, 11d; 13a, 13b, 13c, 13d) in the first antenna pair (3, 7) is symmetrically arranged to a corresponding antenna element (12a, 12b, 12c, 12d; 14a, 14b, 14c, 14d) in the second antenna pair (5, 9) such that a plurality of antenna element symmetry pairs (11a, 12a; 11b, 12b; 11c, 12c; 11 d, 12d; 13a, 14a; 13b, 14b; 13c, 14c; 13d, 14d) are formed, where certain weights, w n, are applied to the antenna elements of each symmetry pair, and where a weight, w n, for a certain polarization (P1, P2) in an antenna element in a symmetry pair comprises the complex conjugated weight, w n *, for an orthogonal polarization (P2, P1) in the other antenna element in the symmetry pair.