Mobile phone without battery


Engineer Vamsi Tall from the laboratory of the University of Washington in Seattle (USA) created the first phone that works without a battery. It works on the principle of backscattering, reflecting radio waves for communication.
Here are the details ...
Vamsi Talla has been working on the device for many years. He understood that in order to do without a battery, the phone must rely on the energy that he could “collect” around. For making calls, the device uses an analog rather than a digital principle, somewhat resembling spy technology. By the way, the creation of the phone without a battery engineer inspired the Soviet spy bugs of the Cold War. These devices were activated only by radio waves of a certain frequency.
Phoneless technology uses some remote components to save power to the device. At the base station, the method of converting and connecting the device to the digital network via Skype works.While the phone works only at a distance of 15 meters from the station.
According to Tall, until the phone goes into production, it is still very far away. Now the prototype is quite simple: it has a touch-sensitive digital panel and a tiny LED display that glows when a certain key is pressed. For a large touch screen, it will take about 400 milliwatts - one hundred thousand times more than what the Tall phone now uses.
In addition, while the phone provides only a poor, intermittent connection. To switch between listening and talking, you have to constantly press a button. However, it still works, and it can be considered a breakthrough, say employees of the publication Wired.

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Mobile phone without battery

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Mobile phone without battery

Mobile phone without battery

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Mobile phone without battery