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Researchers Tap 5G Network to Wirelessly Power IoT Devices


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Georgia Tech's Manos Tentzeris, Aline Eid, and Jimmy Hester

Georgia Tech researchers (from left) Manos Tentzeris, Aline Eid, and Jimmy Hester developed a flexible Rotman lens-based rectifying antenna system for 5G energy harvesting.

Credit: Christopher Moore / Georgia Tech

Researchers at the Georgia Institute of Technology have uncovered an innovative way to tap 5G networks and turn them into "a wireless power grid" for powering Internet of Things (IoT) devices, eliminating the need for batteries.

The Georgia Tech inventors have developed a flexible Rotman lens-based rectifying antenna system capable of millimeter-wave harvesting in the 28-GHz band.

"We've solved the problem of only being able to look from one direction with a system that has a wide angle of coverage," says senior researcher Aline Eid of the ATHENA lab in Georgia Tech's School of Electrical and Computer Engineering. All electromagnetic energy collected from one direction by antenna arrays is combined and fed into a single rectifier, which maximizes its efficiency.  

The findings are described in "5G As a Wireless Power Grid," published in the journal Scientific Reports.

From Georgia Institute of Technology
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