Flange angle design for waveguide-based orbital angular momentum multiplexing communication systems

Pelin N.M.H. Salem, Edip Niver, Mohamed A. Salem

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Orbital angular momentum (OAM) based communication systems utilize the orthogonality of OAM states to multiplex communication channels. A potentially efficient OAM based communication system may employ flanged circular cylindrical waveguides for transmission, given the natural OAM states of the waveguide modes. The electromagnetic field launched by a propagating waveguide mode propagates a vortex beam with an amplitude null along its propagation axis. Receivers optimally should be placed along the direction of the radiation main lobe of the launcher. In this work, we study the relationship between the flange angle of the launcher and the angle of maximum gain in the main lobe of the radiation for four different OAM states. We demonstrate that OAM may have a significant effect on the sensitivity of the angle of maximum gain to variation in the flange angle. The presented results are confirmed using full-wave simulation.

Original languageEnglish (US)
Title of host publication2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages869-871
Number of pages3
ISBN (Electronic)9784902339451
DOIs
StatePublished - Jan 16 2019
Externally publishedYes
Event30th Asia-Pacific Microwave Conference, APMC 2018 - Kyoto, Japan
Duration: Nov 6 2018Nov 9 2018

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC
Volume2018-November

Conference

Conference30th Asia-Pacific Microwave Conference, APMC 2018
CountryJapan
CityKyoto
Period11/6/1811/9/18

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Loop antennas
  • Microwave radio communication
  • Space division multiplexing
  • Waveguide antennas

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