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Poster De Conférence Année : 2022

Wireless Sensing based on Variable Axial Ratio

Hervé Aubert

Résumé

In this paper, we report a novel wireless technique to remotely interrogate passive sensors and wirelessly estimate a physical or chemical quantity of interest. The technique consists in making the axial ratio of the sensor antenna dependent on a complex impedance itself related to the physical quantity to be read. We numerically illustrate the principle with a single-port patch antenna loaded by a varying resistance. A constant axial ratio sensitivity of -0.2 dB/Ohm is obtained within the resistance range and we achieve a bijective axial ratio variation as a function of the loaded resistance.
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Dates et versions

cea-04176694 , version 1 (03-08-2023)

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Luis Felipe Fonseca Dias, Camille Jouvaud, Christophe Delaveaud, Hervé Aubert. Wireless Sensing based on Variable Axial Ratio. 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022, Jul 2022, Denver, United States. 2022, ⟨10.1109/AP-S/USNC-URSI47032.2022.9886765⟩. ⟨cea-04176694⟩
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