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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2023-04-17
A Local Two-Port Interferometer to Detect Radio-Vortices at 30 GHz
By
Lorenzo Scalcinati,

    Mr. Lorenzo Scalcinati

    Physics Department

    University of Milano Bicocca

    Italy

    Homepage

Bruno Paroli,

    Professor Bruno Paroli

    Dipartimento di Fisica

    Universitá degli Studi di Milano

    Italy

    Homepage

Mario Zannoni,

    Professor Mario Zannoni

    Physics Department

    University of Milano Bicocca

    Italy

    Homepage

Massimo Gervasi,

    Prof. Massimo Gervasi

    Physics Department

    University of Milano Bicocca

    Italy

    Homepage

Marco Alberto Carlo Potenza

    Professor Marco Alberto Carlo Potenza

    Dipartimento di Fisica

    Università degli Studi di Milano

    Italy

    Homepage

Progress In Electromagnetics Research M, Vol. 116, 119-128, 2023
doi:10.2528/PIERM23011305 | Google Scholar

Abstract
In this work we show a novel method based on a local two-port interferometer to distinguish the topological charge of radio-vortices at 30 GHz by using a small portion of the entire wavefront only. The experimental investigation of the amplitude and phase properties of the interference pattern with a pure Gaussian beam (l = 0) and a l = 1 radio vortex is carried out, and results are compared with the theory based on Laguerre-Gauss modes. Experiments were performed both with the interferometer and with single antenna to highlight the effective benefits of the interferometric approach, sensitive to the azimuthal phase of the vortex field. Method is also extendable at higher topological charges for applications to high-density millimetric communications.
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Citation
Lorenzo Scalcinati, Bruno Paroli, Mario Zannoni, Massimo Gervasi, and Marco Alberto Carlo Potenza, "A Local Two-Port Interferometer to Detect Radio-Vortices at 30 GHz ," Progress In Electromagnetics Research M, Vol. 116, 119-128, 2023.
doi:10.2528/PIERM23011305
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