Beamforming system using five-port discriminator

Digital beamforming systems is an interesting way for future communication systems that aim to provide better network performance. Five-port reflectometers use a third redundant mixer to decrease the system dependency from the phase and amplitude unbalance of local oscillators. We introduce a digital beamforming system for reception array using the five-port technique which performs a direct conversion of RF signals. The system performance is tested by measuring its bit error rate for different number of antenna array elements