WiFi Backscatter: The Internet of Things Could Talk by Turning Reflective - IEEE Spectrum

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WiFi Backscatter: The Internet of Things Could Talk by Turning Reflective
IEEE Spectrum
Limited computing in batteryless devices has generally been possible using harvested radio-frequency power from ambient TV, radio, cellphone, and Wi-Fi signalsâ??and in the case of RFID chips, from the occasional jolt supplied by a nearby RFID reader.





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