Detection of orbital angular momentum with metasurface at microwave band

Menglin L.N. Chen, Li Jun Jiang, Wei E.I. Sha

Research output: Journal article publicationJournal articleAcademic researchpeer-review

58 Citations (Scopus)

Abstract

An orbital angular momentum (OAM) detection approach at microwave band is proposed. A transmittance function is exploited to model a transmissive metasurface. Then, the metasurface is designed to convert an OAM wave to multiple waves, only one of which is Gaussian. The radiation direction of the Gaussian wave is distinguishable according to the order of incident OAM. Consequently, by locating the Gaussian wave, the incident OAM can be conveniently determined. We use a simple field source to simulate the incident OAM wave in full-wave simulation. It largely simplifies the simulation process when an incident wave carrying OAM is needed. Both numerical and full-wave simulation results are provided to validate our design, and they show good agreement with each other. Then, the metasurface is optimized for high directivity. Our work can provide an efficient and effective way for OAM detection in radio communications.

Original languageEnglish
Article number8119872
Pages (from-to)110-113
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume17
Issue number1
DOIs
Publication statusPublished - Jan 2018
Externally publishedYes

Keywords

  • Multiple orbital angular momentum (OAM)-beam detection
  • OAM
  • Transmissive metasurface

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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