In this article, we propose a method based on the aperture antennas theory to understand the limitations of orbital angular momentum (OAM) antennas in far-field links. Additional insight is also given by analyzing the properties of the operators relating source and farfield distributions for a given order of the vortex and emphasizing additional drawbacks. The degrees-of-freedom (DoF) of the fields associated with the different orders of the vortices are also discussed.
Titolo: | Orbital angular momentum antennas: Understanding actual possibilities through the aperture antennas theory | |
Autori interni: | ||
Data di pubblicazione: | 2018 | |
Rivista: | ||
Handle: | http://hdl.handle.net/20.500.11769/361934 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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08298521-Orbital angular momentum antennas.pdf | Versione Editoriale (PDF) | Administrator |
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