BBC News - 'Twisted' waves could boost capacity of wi-fi and TV


Michael J. Hauan
 



http://www.bbc.co.uk/news/science-environment-17221490

Michael James Hauan
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email:  mjh@...
home:  573-642-8150
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Griff Hamlin <griff@...>
 

Hi All,

The "twist" in the radio waves is "Orbital Angular Momentum".
If you're interested in a more technical explanation of this phenomenon, take a look at the following document to be published in the IEEE  Transactions on Antennas and Propagation:

  http://www.lunduniversity.lu.se/o.o.i.s?id=24732&postid=2062936

The paper is a little hard to follow with all it's equations. The conclusion  is that using Orbital Angular Momentum provides no more bandwidth than using MIMO (Multiple in multiple out) techniques.

Griff
W5VWP

On 03/02/2012 02:00 PM, Michael James Hauan wrote:



http://www.bbc.co.uk/news/science-environment-17221490

Michael James Hauan
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