We propose a switched beam circular polarized antenna optimized for operation at 2.45 GHz. It comprises two disc-based patches assembled in a concentric structure. The antenna is capable of four beams: a directive beam with maximum in broadside direction, a conical beam with a transmission zero in φ = 0°, and two tilted beams pointing to φ = ±30°.The compact dimension, the single-layer structure, and the beamset with moderate beam correlation confirms the effectiveness of the proposed antenna for Direction of Arrival (DoA) applications.
A circular polarized four-beam antenna for direction of arrival applications at 2.45 GHz / Maddio S.; Pelosi G.; Righini M.; Selleri S.. - ELETTRONICO. - (2019), pp. 1371-1372. (Intervento presentato al convegno 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 tenutosi a Hilton Atlanta Hotel, usa nel 2019) [10.1109/APUSNCURSINRSM.2019.8888717].
A circular polarized four-beam antenna for direction of arrival applications at 2.45 GHz
Maddio S.;Pelosi G.;Righini M.;Selleri S.
2019
Abstract
We propose a switched beam circular polarized antenna optimized for operation at 2.45 GHz. It comprises two disc-based patches assembled in a concentric structure. The antenna is capable of four beams: a directive beam with maximum in broadside direction, a conical beam with a transmission zero in φ = 0°, and two tilted beams pointing to φ = ±30°.The compact dimension, the single-layer structure, and the beamset with moderate beam correlation confirms the effectiveness of the proposed antenna for Direction of Arrival (DoA) applications.
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IEEE APS2019 - Overmoded patch.pdf
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