The focused transmission from an antenna array takes the shape of a beam. The beamwidth depends on the number of antennas and choice of antenna. In the fifth video of this series, Prof. Emil Björnson measures the radiation/beam pattern of an array with a varying number of antennas. The results are used to measure the beamwidth and identify side-lobes, and are compared with theoretical formulas. Beamforming is used in all 5G systems, both in sub-6 GHz and mmWave bands. The video ends with a demonstration of how antenna arrays can be used for radar sensing, which is one of the new prospective 6G features.

The experiments are carried out using the TMYTEK Developer Kit https://www.tmytek.com/solutions/mmwa... that the company kindly lent us. This is not a sponsored video.

Emil Björnson is an IEEE Fellow and a Professor of Wireless Communication at the KTH Royal Institute of Technology, Sweden. Website: http://ebjornson.com/research

#5g #6g #mmwave #beamforming #wireless #waves #communication #propagation #constructive #interference #beamwidth #beam