A simulation of Beamforming, a technique used in 5G, Radar, and Sonar.
Instead of physically rotating an antenna, we use an array of small stationary antennas.
By slightly delaying the signal (shifting the phase) for each antenna, the waves add up constructively in one direction and cancel out in others.
Cyan areas are where the wave peaks align (High Signal).
Dark Blue areas are where they cancel out (Nulls).
Frequency: Higher frequency = tighter beams but more "grating lobes" (side beams).
Elements: More elements = sharper, more powerful beam.
Steering: Click anywhere on the screen to focus the beam at that point.