Patent ID: 8988308
Filing Date: 2015-03-24
Classification: H01Q

Abstract:
1. A node in a wireless communication network, the node comprising: an antenna arrangement comprising at least one antenna column, wherein the at least one antenna column comprises a first set of subarrays and a second set of subarrays, each set of subarrays comprises at least two subarrays, each subarray comprises at least one antenna element, said first set of subarrays comprises antenna elements having a first polarization, said second set of subarrays comprises antenna elements having a second polarization, the first polarization and the second polarization being mutually orthogonal, each first set of subarrays is connected to a corresponding first filter device via a first corresponding phase altering device, each second set of subarrays is connected to a corresponding second filter device via a second corresponding phase altering device, each filter device has a respective combined port connected to the corresponding phase altering device and is associated with signals at a first frequency band and signals at a second frequency band, said frequency bands being spectrally separated from each other, each filter device further has a respective first filter port and a respective second filter port, each filter device is arranged to separate signals at the first frequency band and signals at the second frequency band between the respective combined port and the respective filter ports such that each first filter port is arranged for transmission and reception of signals at one frequency band, and each second filter port is arranged for reception of signals at the other frequency band.