Posts by Jott42

Wireless breakthrough: one frequency, multiple signals

Re: Yer, circular polarization, right?

No, it's not the same as circular polarization. But it's actually equivalent to MIMO, as in it is exactly the same thing. See link to paper below.

The same as MIMO

This is actually a subset of MIMO, which is already widely used in WiFi and other wireless networks. Thus it will, regrettably, not give access to any additional bandwidth. The details on the equivalence is in a paper from IEEE Transactions on Antennas and Propagation, titled "Is orbital angular momentum (OAM) based radio communication an unexploited area?" http://lup.lub.lu.se/luur/download?func=downloadFile&recordOId=2062936&fileOId=2339120 [lub.lu.se]