Dual-Polarized Through-Wall Repeater for the Wireless Reading of Millimeter-Wave Passive Sensors

Timothée Marchal (1) , Julien Philippe (1) , Dominique Henry (1) , Maria Valeria de Paolis , Anthony Coustou (2) , Patrick Pons (1) , H. Aubert (1)

1 LAAS-MINC - Équipe MIcro et Nanosystèmes pour les Communications sans fil
2 LAAS-I2C - Service Instrumentation Conception Caractérisation

This paper reports the reading of passive and chipless millimeter-wave sensors using a dual-polarized through-wall repeater. The reader is here a millimeter-wave frequency-modulated continuous-wave (FMCW) Radar, and the batteryless sensor corresponds to a chipless sensing device whose cross-polarized electromagnetic reflectivity depends on the applied pressure. The proposed dual-polarized repeater allows transmitting two different and orthogonal electric field polarizations. The feasibility of through-wall reading of sensors is demonstrated here at 24 GHz from a passive pressure sensing device.

Domaines: Traitement du signal et de l'image [eess.SP]; Analyse de données, Statistiques et Probabilités [physics.data-an]; Electromagnétisme; Micro et nanotechnologies/Microélectronique

Timothée Marchal, Julien Philippe, Dominique Henry, Maria Valeria de Paolis, Anthony Coustou, et al.. Dual-Polarized Through-Wall Repeater for the Wireless Reading of Millimeter-Wave Passive Sensors. 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, Jul 2019, Atlanta, United States. pp.1635-1636, ⟨10.1109/APUSNCURSINRSM.2019.8888721⟩. ⟨hal-02344644⟩