New micro-sensors identification techniques based on reconfigurable multi-band scatterers

Abstract

In this paper and for the first time, the use of multi-band scatterers RCS is proposed for the remote identification of Electromagnetic Transduction based microsensors in a wireless sensor network. The potentialities of such technique are described and original multi-band scatterers shapes and configurations are investigated. This work is the first to be reported and brings an original solution for the passive EM transduction based Micro-sensor identification problem. Index Terms -Reconfigurable Multi-band Scatterers, multiband scatterers RCS, EM Transduction based Wireless Sensor network, FMCW Radar.

Novel Design of a Highly Sensitive RF Strain Transducer for Passive and Remote Sensing in Two Dimensions

“…In a sensing system, sensor nodes should not only provide information about physical conditions of the surrounding environment, but also provide their identification in the network of multiple sensor nodes. Therefore, based on the technique recently reported in [16], [25], [27], and [28], the same concept is suggested for the implementation of the strain sensor to allow for an efficient communication and discrimination between networks of many passive sensor nodes with a central monitoring station.…”

A novel passive ultrasensitive RF temperature transducer for remote sensing and identification utilizing radar cross sections variability

“…A capacitively-loaded MEMS slot element for wireless temperature sensing was proposed in [2] but has very low sensitivity of about 500 kHz/ o C. In this work, the authors introduce a new wireless passive ultrasensitive temperature transducer based on split ring resonators (SRR) that can be integrated into wireless multiphysical sensing platforms. The new temperature transducer achieves an ultrahigh sensitivity of about 780 MHz/ o C. Furthermore, improving the technique reported recently in [3], the authors also propose a new micro-sensor identification technique based on loaded multi-band scatterers whose radar cross section (RCS) read by a frequency modulated continuous wave (FMCW) radar. In this paper, a prototype of the novel SRR temperature sensor integrated into the passive multi-sensor identification sensing system is demonstrated as well as RCS measurements.…”

Wireless sensing and identification of passive electromagnetic sensors based on millimetre-wave FMCW RADAR

“…Such specific RCSs distribution may be used as a signature of the sensor, as proposed in [9][10] while analyzing the RCS variation at a particular frequency -or else, tracking the frequency for which the RCS is maximum-allows in principle the remote derivation of the physical quantity fluctuation [23] [24]. An illustrative example of passive sensors having specific and reconfigurable RCSs can be found in [25].…”