The most exciting thing in our lives after the huge technological development and the emergence of smart phones and tablets is the charging of these devices that consume the battery very quickly with the continuous improvement of new updates
Researchers at the University of Washington have devised a phone without battery from the surrounding charging air to become the world's first battery-free mobile phone, according to the "Wired News" Web site.
The phone is based on a revolutionary technique known as backscatter, which means the reflection of the waves, where the phone charge depends on the return of radio waves or analog signals instead of digital to perform his functions as a phone.
The phone is battery-free and stores power remotely, relying on an external source to activate it, up to a range of up to 15 meters. The phone prototype includes a sensitive touch screen with a number plate and a small LED display.
In other words, the phone harnesses the energy in the air, whether radio frequencies from television or Wi-Fi signals, and turns them into energy stored inside an antenna to charge.
The phone is a first prototype of new revolutionary technology, but it has obstacles, such as sound quality, speed of reception and transmission, but it is still possible to make a phone call on a phone that is free of battery, although it is not quality.