Antenna device for a radio base station in a cellular telephony system

摘要

An apparatus comprises a first and a second input connection for a first (D1) and a second (D2) data stream, and a first and a second polarization former, one for each of said data streams. The apparatus further comprises a first and a second antenna of respective first and second polarizations, and one amplifier each. The apparatus further comprises a first and a second combiner, so that the outputs from the polarization formers may be combined as input to each of the first and second antennas.

主权项

1. A method performed in an apparatus for generating one or more signals having a formed polarization, comprising:
receiving at least one data stream; inputting each data stream into a respective polarization former; splitting, by each polarization former, the corresponding data stream into one first separate stream and one second separate stream; introducing, by the at least one polarization former, a phase shift between the at least one first separate stream and the at least one second separate stream; transmitting the at least one first separate stream to a first output port and the at least one second separate stream to a second output port, wherein the first output port is configured for connection to one or more antennas only of a first polarization, and the second output port is configured for connection to one or more antennas only of a second polarization different from the first polarization, such that the one first separate stream and the one second separate stream are combined in air resulting in a signal having the formed polarization as a function of the phase shift.