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Boffins improve on tech that extracts DC power from ambient Wi-Fi

Saturday May 22, 2021. 01:28 AM , from TheRegister
Series of 8 spin-torque oscillators improves efficiency, but parallel design better for wireless transmission
A research team from the National University of Singapore and Japan’s Tohoku University say they have improved on the use of spin-torque oscillators (STO) to harvest and convert Wi-Fi signals into energy through a series configuration that lit up a battery-less LED.…
https://go.theregister.com/feed/www.theregister.com/2021/05/21/boffins_improve_on_tech_that/

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