Editorial Notevolume 2 Issue 5

An overview on 5G mobile network antennas: Trends and Challenges

Moutaouakil Abdelhakim*

Published: April 06, 2022


To deploy the 5G mobile network, operators must install tens of thousands of new antennas. They are one of the major technological developments of 5G. For 5G, as for all other generations of mobile networks, antennas are an essential support. They are the ones that relay and transmit the signal. Without antennas, there are no waves, and therefore no 5G network. In order for the new 5G mobile network to work, operators must deploy tens of thousands of new antennas. Indeed, 5G antennas are totally different from 4G antennas. And, they contain some of the major technological innovations of 5G, which give the new mobile network its uniqueness. They are called Massive Mimo, beamforming, Small cells [1].

Today, relay antennas, usually high points (towers in rural areas and building roofs in urban areas), work like a street lamp. That is to say that they emit in all directions. Thanks to beamforming technology, the signal processing by 5G antennas is different. Beamforming allows the waves emitted by an antenna to converge on a particular smartphone. And no longer to spray indiscriminately the whole environment. The macro antennas of 5G are therefore directional antennas that act like a directional beacon. The signal is directed in a specific direction rather than being directed in all directions, as is the case today with 4G antennas. Even better, 5G antennas work like this even when users are in motion.