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

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.

SUBMITTER: Fouda RM

PROVIDER: S-EPMC5976661 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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

Fouda Reham M RM Baum Thomas C TC Ghorbani Kamran K

Scientific reports 20180530 1

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, demonst ...[more]

PMID: 29849177

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