Is orbital angular momentum (OAM) based radio communication an unexploited area?
Publikation/Tidskrift/Serie: IEEE Transactions on Antennas and Propagation
We compare the technique of using the orbital angular momentum (OAM) of radio waves for generating multiple channels in a radio communication scenario with traditional multiple-in-multiple-out (MIMO) communication methods. We demonstrate that, for certain array configurations in free space, traditional MIMO theory leads to eigen-modes identical to the OAM states. From this we conclude that communicating over the sub-channels given by OAM states is a subset of the solutions offered by MIMO, and therefore does not offer any additional gains in capacity.
- Electrical Engineering, Electronic Engineering, Information Engineering
- Antenna arrays
- antenna radiation patterns
- channel capacity
- free-space propagation
- orbital angular momentum
- radio communication.
- Radio Systems
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- ISSN: 0018-926X