6533b7ddfe1ef96bd12753e9
RESEARCH PRODUCT
Sub-Millimeter Displacement Sensing by Passive UHF RFID Antennas
Gaetano MarroccoC. PaggiCecilia Occhiuzzisubject
Directional antennaComputer sciencebusiness.industryElectrical engineeringSettore ING-INF/02 - Campi ElettromagneticiMicrostrip antennaUltra high frequencyModulationElectronic engineeringWirelessSensitivity (control systems)Electrical and Electronic EngineeringAntenna (radio)businessRFID sensor Antennadescription
A slotted patch is transformed into a wireless passive UHF-RFID sensor of uni-dimensional displacements by introducing a mechanic-electromagnetic modulation capable to convert sub-millimeter deformations into changes of the antenna's response, remotely detectable. A design methodology allows to obtain the desired sensitivity and dynamic range in a fully controllable way. The sensor and the methodology are discussed through the help of preliminary laboratory experimentations on a concrete brick, showing the possibility to achieve resolutions better than 0.1 mm with low cost readers.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-02-01 |