Beamwidth, beam pattern, and sensing [Part 5, Fundamentals of mmWave communication]

5G NR
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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.

Beamwidth, beam pattern, and sensing
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Fundamentals of mmWave communication - 5 videos

  1. Beamforming directivity Beamforming directivity [Part 1, Fundamentals of mmWave communication]

  2. Wireless propagation losses Wireless propagation losses [Part 2, Fundamentals of mmWave communication]

  3. Constructive and destructive interference Constructive and destructive interference [Part 3, Fundamentals of mmWave communication]

  4. Maximum ratio and zero-forcing beamforming Maximum ratio and zero-forcing beamforming [Part 4, Fundamentals of mmWave communication]

  5. Beamwidth, beam pattern, and sensing Beamwidth, beam pattern, and sensing [Part 5, Fundamentals of mmWave communication]