The present disclosure relates to a wireless communication network node comprising at least one antenna arrangement, at least one radio arrangement, at least one power splitter arrangement and at least one power amplifier. Each antenna arrangement comprises at least one antenna device, and each power splitter arrangement comprises an input port and at least two output ports. Each of said at least one power amplifier is connected to a corresponding input port, and, for each power splitter arrangement, at least two output ports are connected to at least one corresponding antenna device via a corresponding multi-band filter for each of said output ports. Each multi-band filter is arranged for at least two frequency bands.