Horn antennas for generating radio waves bearing orbital angular momentum by using spiral phase plate

The design of two new horn antennas for the generation of radio waves bearing orbital angular momentum (OAM) is presented. The OAM mode ℓ = 1 or −1 is generated by combining the guided modes of a circular waveguide with a spiral phase plate. The authors present here two structures to generate OAM wa...

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Veröffentlicht in:	IET microwaves, antennas & propagation antennas & propagation, 2016-10, Vol.10 (13), p.1420-1427
Hauptverfasser:	Wei, Wenlong, Mahdjoubi, Kourosh, Brousseau, Christian, Emile, Olivier
Format:	Artikel
Sprache:	eng
Schlagworte:	Angular momentum antenna radiation patterns Bearing circular waveguide circular waveguides Computer Science electrical field phase patterns Electronics Engineering Sciences Horn antennas Microwave antennas Networking and Internet Architecture OAM mode OAM wave generation orbital angular momentum Phase plates Propagation radio wave generation Radio waves Special Issue: Selected Papers from the Loughborough Antennas & Propagation Conference (LAPC 2015) spiral phase plate Spirals TE11 modes TM01 modes
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Beschreibung
Zusammenfassung:	The design of two new horn antennas for the generation of radio waves bearing orbital angular momentum (OAM) is presented. The OAM mode ℓ = 1 or −1 is generated by combining the guided modes of a circular waveguide with a spiral phase plate. The authors present here two structures to generate OAM wave based on TE11 and TM01 modes. The resulting magnitude and phase patterns of the electrical field and the radiation patterns evidence the presence of waves carrying OAM.
ISSN:	1751-8725 1751-8733 1751-8733
DOI:	10.1049/iet-map.2016.0064