Massive MIMO: gain G ≈ N (array factor), beam width θ ≈ 51°·λ/(√N·d). Capacity via Shannon: C = B·log₂(1+SNR) — THz carriers unlock huge bandwidth B, but shorter λ means the beam is easily blocked by obstacles (no diffraction around them).
Drag to orbit · Scroll to zoom · Steer the beam toward the receiver