This paper investigates the performance of 3D-printed dielectric reflectarray antennas (RAs) with wideband behavior and beam-steering capabilities. The designed unit cell consists of a single-layer dielectric element perforated with a square hole, whose side is used to control the local variation of the reflection coefficient. The numerical analysis of the unit cell and of first 52x52 reflectarray working in Ka-band, whose scanning capabilities are tested just moving the feed along an arc, confirms that the unit cell has a stable behavior with respect to both the frequency and the direction of arrival of the incident field. In view of these promising capabilities, the proposed unit cell is used to design a bifocal reflectarray with the same size and working in the same frequency band of the first one. Its numerical characterization and the measurements of a prototype prove that the RA is able to provide less than 0.8 dB of gain losses over a scanning range of +/- 40 degrees in the vertical plane, while the bandwidth varies between 13.5% and 28%, depending on the pointing direction. The obtained results demonstrate the effectiveness of the proposed approach and highlight the potential of 3D-printing technology for producing high performance, cost-effective RAs with wideband behavior and excellent beam-steering features.

3D-printed wideband reflectarray antennas with mechanical beam-steering / Massaccesi, Andrea; Beccaria, Michele; Bertana, Valentina; Marasso, Simone Luigi; Cocuzza, Matteo; Dassano, Gianluca; Pirinoli, Paola. - In: INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES. - ISSN 1759-0787. - ELETTRONICO. - (2023), pp. 1-9. [10.1017/s1759078723000776]

3D-printed wideband reflectarray antennas with mechanical beam-steering

Massaccesi, Andrea;Beccaria, Michele;Bertana, Valentina;Marasso, Simone Luigi;Cocuzza, Matteo;Dassano, Gianluca;Pirinoli, Paola
2023

Abstract

This paper investigates the performance of 3D-printed dielectric reflectarray antennas (RAs) with wideband behavior and beam-steering capabilities. The designed unit cell consists of a single-layer dielectric element perforated with a square hole, whose side is used to control the local variation of the reflection coefficient. The numerical analysis of the unit cell and of first 52x52 reflectarray working in Ka-band, whose scanning capabilities are tested just moving the feed along an arc, confirms that the unit cell has a stable behavior with respect to both the frequency and the direction of arrival of the incident field. In view of these promising capabilities, the proposed unit cell is used to design a bifocal reflectarray with the same size and working in the same frequency band of the first one. Its numerical characterization and the measurements of a prototype prove that the RA is able to provide less than 0.8 dB of gain losses over a scanning range of +/- 40 degrees in the vertical plane, while the bandwidth varies between 13.5% and 28%, depending on the pointing direction. The obtained results demonstrate the effectiveness of the proposed approach and highlight the potential of 3D-printing technology for producing high performance, cost-effective RAs with wideband behavior and excellent beam-steering features.
File in questo prodotto:
File Dimensione Formato  
3d-printed-wideband-reflectarray-antennas-with-mechanical-beam-steering.pdf

non disponibili

Descrizione: 3d-printed-wideband-reflectarray-antennas-with-mechanical-beam-steering
Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 2.91 MB
Formato Adobe PDF
2.91 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Paper_IJMWT_final_v2.pdf

accesso aperto

Descrizione: final_paper
Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Creative commons
Dimensione 16.17 MB
Formato Adobe PDF
16.17 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2992557