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Article Dans Une Revue IEEE Antennas and Wireless Propagation Letters Année : 2011

Tunable Near-Field Focused Circular Phase-Array Antenna for 5.8-GHz RFID Applications

Résumé

An RFID-compatible focused circular phase-array antenna working at 5.8 GHz is proposed, which is theoretically analyzed and experimentally demonstrated. It consists of 24 half-wavelength dipole antennas placed on three circles. Using only two phase-shifters, a tunable focal spot in the range of 0.4-1 m (10λ) is obtained. The antenna system is analyzed using the Huygens-Fresnel theory, which is compared to the experimental results. At a focal distance of 0.9 m, the measured beam width and focal depth are given by 0.75λ and 5λ, respectively, which are in agreement with the calculated results.
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Dates et versions

hal-04066272 , version 1 (12-04-2023)

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Romain Siragusa, Pierre Lemaitre-Auger, Smail Tedjini. Tunable Near-Field Focused Circular Phase-Array Antenna for 5.8-GHz RFID Applications. IEEE Antennas and Wireless Propagation Letters, 2011, 10, pp.33-36. ⟨10.1109/LAWP.2011.2108632⟩. ⟨hal-04066272⟩

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