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Is orbital angular momentum (OAM) based radio communication an unexploited area?

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Author

Summary, in English

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.

Publishing year

2012

Language

English

Pages

1126-1131

Publication/Series

IEEE Transactions on Antennas and Propagation

Volume

60

Issue

2

Document type

Journal article

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Antenna arrays
  • antenna radiation patterns
  • channel capacity
  • free-space propagation
  • MIMO
  • orbital angular momentum
  • radio communication.

Status

Published

Research group

  • Radio Systems

ISBN/ISSN/Other

  • ISSN: 0018-926X