Nokia developing technology to charge phones from ambient radio waves?

This article contains unofficial information.
Nokia developing technology to charge phones from ambient radio waves?
Imagine never having to charge your cellphone ever again. Picture your phone scooping up ambient energy waves from cellphone antennas, Wi-Fi  transmitters or TV towers. It's not sci-fi, but is reality as the research team at Nokia is working on a way to keep your cellphone's battery topped off. A member of the Nokia Research Centre in Cambridge, Markku Rouvala, says his team is working on a way to collect up to 50 milliwatts of power from the electromagnetic waves which are converted into electrical signals. The 50 milliwatts of power would be enough to recharge a phone that has been turned off. Current prototypes can pick up about 3 to 5 milliwatts.

Intel's Joshua Smith, who co-developed a temperature and humidity sensor that uses power from a 1.0 megawatt television antenna 4.1 kilometers away, says that to obtain 50 milliwatts of power would require over 1,000 strong signals. Smith's sensor required only 60 microwatts. Another skeptic is Harry Ostaffe, head of mareting for Powercast, who said that, "To get 50 milliwatts seems like a lot".

Nokia's Rouvala says that this technology will probably be ready to be put in a handset in 3 or 4 years. He says that ultimately, the Finnish phone manufacturer plans on using the technology in conjunction with other energy saving faetures such as solar cells placed around the outside body of a handset.

source: Technology Review via EngadgetMobile


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4 Comments

1. phillipxenxciel

Posts: 14; Member since: Jul 23, 2008

its like cell phone dont have enough signal to cost cancer alrdy ~they gotta add more to made sure u get sick

2. attsucks

Posts: 139; Member since: Mar 24, 2009

Wow, you sir are straight up gangsta. I only wish I could talk like you. Please teach me.

3. Andrewtst

Posts: 696; Member since: Jan 25, 2009

Yalo.... One day we all die under technology.

4. Hazurr

Posts: 1; Member since: Jun 10, 2009

Could you please iterate to that statement? As far as i can see it uses some sort of method to absorb background Short/Microwave radiation, in layman's terms it uses radio waves that are already there...

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