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

Did search but didn't find anything.

Interesting piece on utilising bandwidth and increasing communication speeds.

www.bbc.co.uk...

In the simplest case, putting a twist on the waves is as easy as putting a twist into the dish that sends the signal.

How come they've only just considered doing this then?

Interesting non the less though.

reply to post by CR4V3N


Good find, and more to the point:

Prof Thide and his colleagues are already in discussions with industry to develop a system that can transmit many more than two bands of different orbital angular momentum.

The results could radically change just how much information and speed can be squeezed out of the crowded electromagnetic spectrum, applied to radio and television as well as wi-fi and perhaps even mobile phones.

S&F btw