This article proposes an innovative method for extending the scan range of phased arrays based on Rotman lens by a factor two. The main objective is to take advantage of the performance of the Rotman lens as beamforming network, resolving its intrinsic increase of phase error and coupling losses when wide scan angles are required. The proposed concept aims to overcome these limitations by introducing the combination of two specific operations called “complete beam shifting (CBS)” and “beam mirroring (BM).” The described technique is applied to a 24 GHz scanning array antenna system, designed and manufactured by taking into consideration fabrication and related cost issues. Finally, the proposed concept has been validated through measurements.

Compact Extended Scan Range Antenna Array based on Rotman Lens / Tolin, E.; Litschke, O.; Bruni, S.; Vipiana, F.. - In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. - ISSN 0018-926X. - 67:12(2019), pp. 7356-7367. [10.1109/TAP.2019.2935086]

Compact Extended Scan Range Antenna Array based on Rotman Lens

E. Tolin;F. Vipiana
2019

Abstract

This article proposes an innovative method for extending the scan range of phased arrays based on Rotman lens by a factor two. The main objective is to take advantage of the performance of the Rotman lens as beamforming network, resolving its intrinsic increase of phase error and coupling losses when wide scan angles are required. The proposed concept aims to overcome these limitations by introducing the combination of two specific operations called “complete beam shifting (CBS)” and “beam mirroring (BM).” The described technique is applied to a 24 GHz scanning array antenna system, designed and manufactured by taking into consideration fabrication and related cost issues. Finally, the proposed concept has been validated through measurements.
File in questo prodotto:
File Dimensione Formato  
Compact Extended Scan Range Antenna Array based on Rotman Lens.pdf

accesso aperto

Descrizione: Articolo principale
Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 1.45 MB
Formato Adobe PDF
1.45 MB Adobe PDF Visualizza/Apri
Tolin-Compact.pdf

non disponibili

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 5.83 MB
Formato Adobe PDF
5.83 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
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/11583/2742284