Mahbub and her team of researchers are developing wireless technology to transfer electromagnetic waves to and from far distances. Called far-field wireless power transfer, or power beaming, the technology would enable UAVs, or drones, for example, to recharge without having to land at power stations. One of the challenges of power beaming at far distances is preventing electromagnetic waves from scattering along the way. To solve that problem, Mahbub and her team use a system of transmitters, or smaller antennas called phased-array antennas, to steer the electromagnetic waves along a targeted path. “We can track the unmanned aerial vehicle and steer the beam to ensure we are constantly powering the dynamic vehicles,” Mahbub said.