It's a way to create constructive interference in an RF signal in a certain direction (the signal gets stronger in one direction and weaker in others without ch

It's a way to create constructive interference in an RF signal in a certain direction (the signal gets stronger in one direction and weaker in others without changing the hardware). It's commonly used in LTE and Wi-Fi as a way to increase SNR directionally for clients. https://en.wikipedia.org/wiki/Beamforming https://en.wikipedia.org/wiki/Beamforming