China demonstrates microwave beam that recharges drones in flight, continues power delivery

Chinese researchers have achieved something that sounds like science fiction: they've successfully beamed power wirelessly from a moving ground vehicle to a drone soaring overhead, keeping it airborne for over three hours without landing.

The breakthrough uses microwaves to transfer energy from a mobile emitter to an antenna array mounted beneath the aircraft, maintaining a stable connection even while both vehicles are in motion. The Xidian University team overcame the challenge of keeping the microwave beam precisely aligned by combining GPS positioning with real-time tracking systems.

This technology could fundamentally reshape modern warfare by creating what analysts call "land-based aircraft carriers." Armored vehicles could launch and continuously power drone fleets, extending surveillance and strike missions without the vulnerability of landing cycles.

The timing reflects an intensifying race between superpowers. DARPA is pursuing similar wireless charging systems using radio frequencies and lasers, while private companies develop competing approaches. Microwave transmission offers advantages over laser systems, which can be disrupted by fog or dust and create detectable infrared signatures that reveal drone positions to enemies.

Beyond military applications, the technology could revolutionize drone design itself, reducing dependence on heavy batteries and freeing up space for more sophisticated sensors and payloads.