MU-MIMO Beamforming by Constructive Interference

wavelengths

λ

0

0.15

λ

1

0.16

array width and height

w

3

h

3

Δ

view distance

8

accuracy

2

Wireless telecommunication technology has developed practical multiple-user multiple-input multiple-output (MU-MIMO) antenna configurations. This Demonstration shows a plot of energy density for 2D beamforming of an antenna array (red dots) and two receivers (locators) exhibiting constructive interference. You can choose relative phases to strengthen the signal at selected points, preferably using different frequencies. For a triangular array, select Δ.