A metasurface-based antenna converts ambient radio waves into electrical energy: Technology could make it possible to use radio emissions from cell phone networks to wirelessly operate sensors and LEDs.
Researchers have developed a new metasurface-based antenna, which represents an important step in making it convenient to collect energy from radio waves, such as those in cellular networks or Bluetooth connections. This technology could potentially offer wireless power to sensors, LEDs and other simple devices with low power requirements. “By eliminating cable connections and batteries, […]