Coaxially distributed diameter sub-coil twisted loop antenna in HF RFID

Marjorie Grzeskowiak (1) , Antoine Diet (2) , Megdouda Benamara (1) , Stéphane Protat (1) , Christophe Conessa (2) , Marc Biancheri-Astier (3, 2) , Franciso de Oliveira Alves (2) , Yann Le Bihan (2) , Gaelle Bazin Lissorgues (1)

1 ESYCOM - Electronique, Systèmes de communication et Microsystèmes
2 GeePs - Laboratoire Génie électrique et électronique de Paris
3 IDES - Interactions et dynamique des environnements de surface

This paper proposes an HF (High Frequency) transmitting coil less sensitive to the angular and position misalignments of the small receiving coil. The DDC (Distributed Diameter Coil) shape and TLA (Twisted Loop Antenna) allow respectively minimizing the disturbance of the magnetic link due to the lateral misalignment and the relative tilting direction of the transmitting coil to the receiving coil. The magnetic coupling link obtained from DDC TLA coils is illustrated by comparison with conventional TLA in the case of HF RFID.

Keywords: HF RFID; Coil; Near field; Magnetic coupling

Domains: Electromagnetism

Marjorie Grzeskowiak, Antoine Diet, Megdouda Benamara, Stéphane Protat, Christophe Conessa, et al.. Coaxially distributed diameter sub-coil twisted loop antenna in HF RFID. 2017 11th European Conference on Antennas and Propagation (EUCAP), Mar 2017, Paris, France. pp.1919-1923, ⟨10.23919/EuCAP.2017.7928426⟩. ⟨hal-01691620⟩