US Army scientists have demonstrated a new quantum sensor that can measure the full 3D direction of radio-frequency electromagnetic fields, a milestone that could reshape how signals are detected on the battlefield.

The breakthrough was achieved by scientists at the U.S. Army Combat Capabilities Development Command, known as DEVCOM, Army Research Laboratory.

According to the researchers, the sensor could improve situational awareness, strengthen secure communications, and help soldiers make faster, better-informed decisions in complex battlefield environments.