MASSIVE MIMO
Multiple element base station - greater capacity, multiple users, faster data.
5G will use ‘massive’ MIMO (multiple input, multiple output) antennas that have very large numbers of antenna elements or connections to send and receive more data simultaneously. The benefit to users is that more people can simultaneously connect to the network and maintain high throughput.
The overall physical size of the 5G massive MIMO antennas will be similar to 4G, however with a higher frequency, the individual antenna element size is smaller allowing more elements (in excess of 100) in the same physical case.
5G User Equipment including mobile phones and devices will also have MIMO antenna technology built into the device for the mmWave frequencies.

4G sector base station and 5G base station with a new multi element massive MIMO antenna array. The overall physical size of the 5G base station antenna is expected to be similar to a 4G base station antenna.
MIMO Beam Steering
Beam steering is a technology that allows the massive MIMO base station antennas to direct the radio signal to the users and devices rather than in all directions. The beam steering technology uses advanced signal processing algorithms to determine the best path for the radio signal to reach the user. This increases efficiency as it reduces interference (unwanted radio signals).

Massive MIMO antenna and advanced beam steering optimises EMF and increases efficieny.
Source: emfexplained.in


