The rectenna label utilizes NFC technology to transmit data, using power harvested from the radio waves of the consumer's smartphone (Photo: Shutterstock)
By now, we’ve all become quite used to seeing QR codes on products, price tags and advertisements – just scan the code with your smartphone’s camera, and it’s converted into readable information. Soon, however, those codes could be facing competition from something known as the rectenna. It’s an inexpensive label-like device that transmits data to a near-field communication (NFC)-enabled smartphone, using that phone’s radio waves as its power source.
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