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'Twisted' Waves Could Give Better WiFi and TV Data Stream Capacity
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msg:4424052
 9:37 am on Mar 2, 2012 (gmt 0)

'Twisted' Waves Could Give Better WiFi and TV Data Stream Capacity [bbc.co.uk]
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.

The approach, described in the New Journal of Physics, could be applied to radio, wi-fi, and television.


 

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