‘POWER from AIR’ backscatter tech now juices up Internet of Stuff Wi-Fi gizmos
Researchers who last year demonstrated they could harvest stray RF signals to power RFID tags have scaled-up their technology to power Wi-Fi devices. The University of Washington team is pitching their ultra low-power “backscatter harvesting” technology with the inevitable Internet of Things (IoT) tag, since if it could be commercialised the technology would help remove the battery from the battalions of sensors that IoT advocates imagine will one day rule our world. In previous research, the group got RFID tags to represent binary 1 and 0 states by either absorbing…
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