Title :
Millimetre-wave scanning radar for the detection and remote reading of passive electromagnetic sensors
Author :
Henry, Dominique ; Rifai, Ayoub ; Pons, Patrick ; Aubert, Herve
Author_Institution :
LAAS, Toulouse, France
Abstract :
This communication reports the latest developments in Frequency-Modulated Continuous-Wave (FMCW) radar interrogation technique for chipless and wireless sensors. For the first time a millimetre-wave scanning radar is used for detecting and reading passive and chipless electromagnetic sensors. Measurement results show that, with a 24 cm depth resolution and a 2 degrees angular resolution, it is possible to localize and distinguish two passive sensors separated by 5 cm at a distance of 3 meters from a FMCW radar operating at 30GHz. Sensing modes visualization derived from the millimetre-wave radar scanning of a scene makes possible the separation length measurement with an accuracy of 1cm.
Keywords :
CW radar; FM radar; millimetre wave detectors; millimetre wave radar; radar resolution; FMCW radar interrogation technique; angular resolution; chipless sensor; depth resolution; frequency modulated continuous wave radar interrogation technique; millimetre wave scanning radar; passive electromagnetic sensor detection; passive electromagnetic sensor remote reading; wireless sensor; Passive radar; Radar antennas; Radar cross-sections; Scattering; Sensors; Wireless sensor networks; millimetre-wave scanning radar; passive and chipless electromagnetic sensors;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
