ArticleRoyal Society open science2019
Experimental evaluation of 3D printed spiral phase plates for enabling an orbital angular momentum multiplexed radio system.
Article in Royal Society open science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Metasurface-based THz reflectarray antenna with vortex multiplexing and beam-steering capabilities for future wireless communications.iScience · 2022Article
- Experimental evaluation of spectral efficiency from a circular array antenna producing a Laguerre-Gauss mode.Royal Society open science · 2020Article
- Linear angular momentum multiplexing-conceptualization and experimental evaluation with antenna arrays.Proceedings. Mathematical, physical, and engineering sciences · 2020Article
- Evaluation of the Laguerre-Gaussian mode purity produced by three-dimensional-printed microwave spiral phase plates.Royal Society open science · 2020Article
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Authors and funding
10 authors.
Funding
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Abstract
This paper evaluates the performance of three-dimensionally (3D) printed spiral phase plates (SPPs) for enabling an orbital angular momentum (OAM) multiplexed radio system. The design and realization of the SPPs by means of additive manufacturing exploiting a high-permittivity material is described. Modes 1 and 2 SPPs are then evaluated at 15 GHz in terms of 3D complex radiation pattern, mode purity and beam collimation by means of a 3D printed dielectric lens. The results with the lens yield a crosstalk of -8 dB for between modes 1 and -1, and -11.4 dB for between modes 2 and -2. We suggest a mode multiplexer architecture that is expected to further reduce the crosstalk for each mode. An additional loss of 4.2 dB is incurred with the SPPs inserted into the communication link, which is undesirable for obtaining reliable LTE-based communications. Thus, we suggest: using lower loss materials, seeking ways to reduce material interface reflections or alternative ways of OAM multiplexing to realize a viable OAM multiplexed radio system.
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