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A Twisted Loop Antenna to enhance HF RFID detection for different tag positioning

Abstract : In this paper, a new LF/HF RFID reader loop antenna design is proposed and tested, in order to increase detection areas of the tags. The studied structure is a Twisted Loop Antenna (TLA) which is based on a modified distribution and orientation of the magnetic field lines. Our structure fruitfully uses the complementary antenna principle in a co-planar configuration. This offers more possibilities of tag detection whatever the tag position and orientation. The antenna performances are evaluated by optimizing the equivalent mutual inductance between reader antenna and tag antenna. Results are presented firstly in simulation (MATLAB and HFSS electromagnetic calculator) and secondly by experimental tests at different distances and misalignments, for the two possible tag orientations: parallel and perpendicular.
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Submitted on : Wednesday, July 31, 2019 - 10:55:40 AM
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Megdouda Benamara, Marjorie Grzeskowiak, Antoine Diet, Gaelle Bazin Lissorgues, Yann Le Bihan, et al.. A Twisted Loop Antenna to enhance HF RFID detection for different tag positioning. 2016 10th European Conference on Antennas and Propagation (EuCAP), Apr 2016, Davos, Switzerland. pp.1-5, ⟨10.1109/EuCAP.2016.7481810⟩. ⟨hal-01691587⟩



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