1st Battery-Free Cellphone Makes Calls by Harvesting Ambient Power

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1st Battery-Free Cellphone Makes Calls by Harvesting Ambient Power

Post by KirtB » Mon Jul 24, 2017 10:51 pm

1st Battery-Free Cellphone Makes Calls by Harvesting Ambient Power

"University of Washington researchers have invented a cellphone that requires no batteries - a major leap forward in moving beyond chargers, cords and dying phones. Instead, the phone harvests the few microwatts of power it requires from either ambient radio signals or light. The team also made Skype calls using its battery-free phone, demonstrating that the prototype made of commercial, off-the-shelf components can receive and transmit speech and communicate with a base station. The new technology is detailed in ..." https://phys.org/news/2017-07-battery-free-cellphone-harvesting-ambient-power.html
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