Electric Sky developing new self-focusing beam with DARPA funding

Electric Sky, Inc. (El-Sky) announced today it has begun building the world's first Whisper BeamTM transmitter for wirelessly powering in-flight UAVs (unhumanned aerial vehicles), with funding from the U.S. Defense Advanced Research Projects Agency (DARPA). Past wireless power for UAVs used lasers or microwaves, which start strong but get weaker as they travel. Whisper Beam [...]