In this paper, a dielectric resonator-based unit-cell is used to design a reflectarray antenna with improved efficiency. The unit-cell is a dielectric structure composed of a cylindrical element placed on a squared base having a ground plane at the bottom. The diameter of the cylinder is the parameter chosen for controlling the phase of the reflection coefficient. To verify its effectiveness, the proposed cell is employed to design a Ka-band offset reflectarray consisting in 52 × 52 elements. Simulated results show that the antenna is able to achieve a maximum gain of 32.3 dBi at 30 GHz, corresponding to an aperture efficiency of 55%.

High-efficiency Reflectarray Using Dielectric Resonator Elements / Massaccesi, A.; Beccaria, M.; Pirinoli, P.. - ELETTRONICO. - (2021), pp. 1595-1596. (Intervento presentato al convegno 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI) tenutosi a Singapore, Singapore nel 04-10 December 2021) [10.1109/APS/URSI47566.2021.9704118].

High-efficiency Reflectarray Using Dielectric Resonator Elements

Massaccesi, A.;Beccaria, M.;Pirinoli, P.
2021

Abstract

In this paper, a dielectric resonator-based unit-cell is used to design a reflectarray antenna with improved efficiency. The unit-cell is a dielectric structure composed of a cylindrical element placed on a squared base having a ground plane at the bottom. The diameter of the cylinder is the parameter chosen for controlling the phase of the reflection coefficient. To verify its effectiveness, the proposed cell is employed to design a Ka-band offset reflectarray consisting in 52 × 52 elements. Simulated results show that the antenna is able to achieve a maximum gain of 32.3 dBi at 30 GHz, corresponding to an aperture efficiency of 55%.
2021
978-1-7281-4670-6
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2973890