A node for a wireless communication network, the node comprising an antenna arrangement, the antenna arrangement in turn comprising at least three antenna columns (3, 4, 5), each antenna column (3, 4, 5) comprising a first set of subarrays (8, 9, 10) and a second set of subarrays (11, 12, 13), each set of subarrays (8, 9, 10; 11, 12, 13) comprising at least two subarrays (8a, 8b; 9a, 9b; 10a, 10b; 11a, 11b; 12a, 12b; 13a, 13b) and each subarray (8a, 8b; 9a, 9b; 10a, 10b; 11a, 11b; 12a, 12b; 13a, 13b) in turn comprising at least one antenna element (14, 15; 16, 17; 18, 19; 20, 21; 22, 23; 24, 25; 26, 27; 28, 29; 30, 31; 32, 33; 34, 35; 36, 37), said first set of subarrays (8, 9, 10) comprising antenna elements (14, 15; 16, 17; 22, 23; 24, 25; 30, 31; 32, 33) having a first polarization and said second set of subarrays (11, 12, 13) comprising antenna elements (18, 19; 20, 21; 26, 27; 28, 29; 34, 35; 36, 37) having a second polarization, the first polarization and the second polarization being mutually orthogonal, where for each subarray (8a, 8b; 9a, 9b; 10a, 10b; 11a, 11b; 12a, 12b; 13a, 13b) the antenna elements are connected to a combined port (38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60) of a corresponding filter device (39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61), each filter device (39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61) comprising a first filter port (62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84) and a second filter port (63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85), each filter device (39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61) being arranged to separate signals of different frequency bands between the respective combined port (38, 39, 40, 41, 42, 43, 44) and the respective filter ports (62, 63; 64, 65; 66, 67; 68, 69; 70, 71; 72, 73; 74, 75; 76, 77; 78, 79; 80, 81; 82, 83; 84) such that each first filter port (62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84) is arranged for transmission and reception of signals at one frequency band and each second filter port (63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85) is arranged for reception of signals at another frequency band, whereby a first antenna column and a third antenna column are arranged for reception and transmission of signals by means of a first frequency band (f 1), the first antenna column and a second antenna column are arranged for reception and transmission of signals by means of a second frequency band (f 2), and the second antenna column and the third antenna column are arranged for reception and transmission of signals by means of a third frequency band (f 3), where for each set of subarrays (8, 9, 10, 11, 12, 13), the first filter ports (62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84) are connected to a corresponding phase altering device (86, 88, 90, 92, 94, 96), and the second filter ports (63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85) are connected to another corresponding phase altering device (87, 89, 91, 93, 95, 97), where each one of the phase altering devices (86, 88, 90, 92, 94, 96; 87, 89, 91, 93, 95, 97) are connected to either a first channel for transmission and reception, a second channel for transmission and reception, a third channel for transmission and reception, or a fourth channel for transmission and reception, such that each channel (TR1, TR2, TR3, TR4) is connected to signals of said frequency bands (f 1, f 2, f 3), such that the antenna arrangement is arranged for both reception and transmission at the four different channels (TR1, TR2, TR3, TR4), and at the three different frequency bands (f 1, f 2, f 3).