Method and transmitter for analog beam steering

Abstract

Disclosed is a transmitter configured for analog beam steering, the transmitter comprising a plurality of antenna branches, each having an antenna (). The transmitter comprises, at each of the antenna branches, a signal splitter () for splitting an analog radio signal into a number of beam signals, the number of beam signals equals a number of desired beams to be transmitted. Further, the transmitter comprises, for each of the number of beam signals, a phase shifter () for phase shifting the beam signal according to a phase shift setting for that beam and for that antenna branch, the phase shift settings being taken from a single look-up table, and a signal combiner () for combining the phase shifted beam signals into one combined signal. Further, the transmitter is arranged for transmitting the combined signal from the antenna () of that antenna branch towards a receiver.