Calculation of the equivalente mutual impedance in complex HF RFID systems

Megdouda Benamara (1) , Marjorie Grzeskowiak (1) , Gaelle Bazin Lissorgues (1) , A. Diet (2) , Yann Le Bihan (2) , Christophe Conessa (2)

1 ESYCOM - Electronique, Systèmes de communication et Microsystèmes
2 GeePs - Laboratoire Génie électrique et électronique de Paris

In this work the improvement of HF RFID detection is obtained by the addition of small resonator in the reader coil. In conventional RFID system, the link between the reader and the tag coils is the mutual inductance, the added resonator is magnetically coupled with the reader coil, and then the link is expressed by the mutual impedance. Theoretical calculation of the equivalent mutual impedance of such system is reported and validated by comparison with HFSS simulation and measures.

Keywords: RFID; Mutual impedance; HF

Domains: Engineering Sciences [physics]; Electromagnetism

Megdouda Benamara, Marjorie Grzeskowiak, Gaelle Bazin Lissorgues, A. Diet, Yann Le Bihan, et al.. Calculation of the equivalente mutual impedance in complex HF RFID systems. 2016 22nd International Conference on Applied Electromagnetics and Communications (ICECOM), Sep 2016, Dubrovnik, Croatia. pp.1-4, ⟨10.1109/ICECom.2016.7843884⟩. ⟨hal-01691597⟩