Wireless Passive Sensors Interrogation Technique Based on a Three-Dimensional Analysis

Dominique Henry (1) , Hervé Aubert (1) , Patrick Pons (1)

1 LAAS-MINC - Équipe MIcro et Nanosystèmes pour les Communications sans fil

This paper describes a novel wireless passive sensors interrogation technique based on a three-dimensional analysis. Variable impedances acting as passive sensors are remotely read by a 24 GHz bistatic FMCW radar at distances of 2.0 meters and 5.5 meters. The radar performs a mechanical beam scanning to receive the electromagnetic echo level response in a volume. Several estimators are compared to calibrate and quantify the passive sensor input impedance. From this impedance the physical quantity of interest (temperature, pressure, strain …) can be derived.

Mots clés: wireless passive sensors; 3D radar imaging; remote sensing; isosurfaces

Domaines: Sciences de l'ingénieur [physics]

Dominique Henry, Hervé Aubert, Patrick Pons. Wireless Passive Sensors Interrogation Technique Based on a Three-Dimensional Analysis. European Microwave Week (EuMW), Oct 2016, London, United Kingdom. ⟨hal-01396848⟩