New Technology For Battery Free Phones

WASHINGTON – The phone is the work of a group of researchers at the University of Washington in Seattle and works by garnering a small amount of power from radio signals, known as radio frequencies or ‘RF’ waves.

The findings may not be commensurate with the telephone technology findings by Alexander Graham Bell, but the two researchers at the University of Washington, Shyam Gollakota, and Vamsi Talla said their breakthrough was remarkable.

“This battery-free phone is a big leap in the ability of a battery-free device because now there’s a streaming device that can keep talking while receiving data, which is basically a phone,” Gollakota said.

Does not the phone need a lot of electric power to operate without the battery?


“Normal phones need hundreds of milliwatts of power when they make calls, so it’s impossible to make such a device completely free of battery, which we do, as the first challenge, is to reduce the need for that big power.”


Once successful, a phone that can make use of the electromagnetic energy that beats around us in the form of radio frequency or RF waves.


“RF waves are all around us, for example, FM stations broadcast radio waves, as well as AM stations, TV stations, cell towers, all emitting RF waves,” says Talla.


The phone basically uses all the energy around us. We can not do all we can with smartphones at the moment, but at least if the phone’s battery is dead, that does not mean we can not be reached.


“In the future, all smartphones will be equipped with battery-free rides that allow us to at least make calls when the phone’s battery is dead,” continued Talla.


With this concept already proven, the two researchers are now working on improving the product, enabling messaging or cyberspace exploration without batteries.


“We are very excited about this technology and the University of Washington has IP for this technology and we are trying to essentially market and enable this phone to reach the public and apply this system more broadly,” he added.


The team hopes there is a product ready for sale in less than a year.