'Twisted' waves could boost capacity of wi-fi and TV
Posted in: Internet Use/New Technologies at 03/03/2012 16:37
A striking demonstration of a means to boost the information-carrying capacity of radio waves has taken place across the lagoon in Venice, Italy.
The technique exploits what is called the "orbital angular momentum" of the waves - imparting them with a "twist".
Varying this twist permits many data streams to fit in the frequency spread currently used for just one.
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