Quasi-Orbital Angular Momentum (Q-OAM) Generated by Quasi-Circular Array Antenna (QCA)

Fouda, R, Baum, T and Ghorbani, K 2018, 'Quasi-Orbital Angular Momentum (Q-OAM) Generated by Quasi-Circular Array Antenna (QCA)', Scientific Reports, vol. 8, no. 1, 8363, pp. 1-11.

Document type: Journal Article
Collection: Journal Articles

Title Quasi-Orbital Angular Momentum (Q-OAM) Generated by Quasi-Circular Array Antenna (QCA)
Author(s) Fouda, R
Baum, T
Ghorbani, K
Year 2018
Journal name Scientific Reports
Volume number 8
Issue number 1
Article Number 8363
Start page 1
End page 11
Total pages 11
Publisher Nature
Abstract Orbital Angular Momentum (OAM), as a property of Electromagnetic (EM) fields has recently been proposed for Radio and Microwave communications. This paper investigates a new class of OAM radiation patterns for Radio and Microwave applications, namely, Quasi-OAM radiation patterns, induced by a proposed Quasi-Circular Array Antenna (QCA). Simulations and Experiments show that Quasi-OAM waves can be induced and preserved in the far-field using the proposed QCA apertures and configurations, demonstrating non-integer dominant OAM modes corresponding to l = +1 and l = -1 with a directional quasi intensity and rotational 2? phase profiles. The proposed method in this work significantly reduces aperture size and cost by using Quasi-Circular Arrays of N Q = 5 and N Q = 6 elements in lieu of conventional OAM circular aperture arrays with N = 8 elements.
Subject Electrical and Electronic Engineering not elsewhere classified
DOI - identifier 10.1038/s41598-018-26733-6
Copyright notice © 2018 The Author(s)
ISSN 2045-2322
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