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EnglishThis paper proposes an algorithm for the automated design of metasurface antennas. From the objective radiation field and the feeding structure, it allows to obtain a surface current distribution that leads to a passive and lossless impedance profile on the radiating aperture. The surface is modelled by a scalar impedance boundary condition and the electromagnetic problem is formulated as an electric field integral equation. The approach is entirely numerical, based on the gradient descent optimization of a scalar objective function that incorporates passivity and far field requirements. This procedure was applied to the design of an electrically large circular metasurface antenna at 32 GHz, obtaining a lossless impedance profile with satisfactory radiation properties.
A Current-Based Algorithm for the Design of Metasurface Antennas / Zucchi, Marcello; Vernì, Francesco; Righero, Marco; Vecchi, Giuseppe. - ELETTRONICO. - (2022). ((Intervento presentato al convegno 2022 16th European Conference on Antennas and Propagation (EuCAP) tenutosi a Madrid (Spagna) nel 27 Marzo - 1 Aprile 2022.
| Titolo: | A Current-Based Algorithm for the Design of Metasurface Antennas | |
| Autori: | ||
| Data di pubblicazione: | 2022 | |
| Abstract: | This paper proposes an algorithm for the automated design of metasurface antennas. From the objec...tive radiation field and the feeding structure, it allows to obtain a surface current distribution that leads to a passive and lossless impedance profile on the radiating aperture. The surface is modelled by a scalar impedance boundary condition and the electromagnetic problem is formulated as an electric field integral equation. The approach is entirely numerical, based on the gradient descent optimization of a scalar objective function that incorporates passivity and far field requirements. This procedure was applied to the design of an electrically large circular metasurface antenna at 32 GHz, obtaining a lossless impedance profile with satisfactory radiation properties. | |
| ISBN: | 978-88-31299-05-3 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| article_eucap2022.pdf | Articolo principale | 2a Post-print versione editoriale / Version of Record | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2960600
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