Hdr Année : 2023

Time-Variant and Non-Linear Transponders for Identification and Sensing

Résumé

This manuscript presents two new directions to realize the function of identification and sensing using radio frequency signals. These techniques are able to break the time invariance and/or the linearity of the transponders and can be seen as a clear opposition to the classical paradigm used in the RFID chipless technology. The first direction addresses transponders which can break the time-invariance property by modulating their backscattered field. Four principles are investigated such as load modulation, doppler modulation, polarization modulation and radiation pattern modulation. The second direction focuses non-linear transponders which can break the linearity property. Two techniques are presented based on the harmonics response and the non linear modulation of the transponders. Linear time-variant and non linear transponders offer interesting properties to realize both identification and sensing. Finally these transponders are characterized by a read range and a coding capacity which can outperform by a factor 30 the ones associated to the chipless technology.

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Dates et versions

tel-04868057 , version 1 (06-01-2025)

Identifiants

  • HAL Id : tel-04868057 , version 1

Citer

Nicolas Barbot. Time-Variant and Non-Linear Transponders for Identification and Sensing. Electromagnetism. Université de Grenoble, 2023. ⟨tel-04868057⟩

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