Reflective Intelligent Metasurface for Automatic Tracking of Mobile Targets

This work introduces an intelligent connected system, based on a programmable metasurface reflector combined with a microstrip patch antenna, capable of autonomously adjusting its electromagnetic properties to ensure dynamic tracking of mobile targets. The system first locates the moving target using GPS data retrieved from a real-time cloud platform, then calculates the desired radiation direction for the tracking and determines the appropriate phase profile, and finally generates the corresponding voltage modulation to be applied to the varactor diodes loaded on the metasurface. Experimental results highlight the responsiveness of the metasurface and its effectiveness in beamforming to optimize the tracking of mobile targets, opening the door to future autonomous wireless communication systems.