Constrained-Design of Passive UHF RFID Sensor Antennas
- 7 March 2013
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 61 (6) , 2972-2980
Abstract
Passive UHF RFID tags may be used, beside labeling, to remotely observe the physical/chemical change of the tagged object, through modulation of their impedance and gain, thus acting as sensor antennas. The design of this new class of devices can be mastered by fully understanding the relationship between communication and sensing with the purpose to balance the maximization of the dynamic range of the response with the stability of the read distance. A new kind of communication/sensing nomogram permits to display both behaviors in a unitary way and to predict their physical limits, as well as to formalize a multi-parameter general-purpose optimization methodology. The procedure is demonstrated by application to the design of a strain-gauge tag and of a level-detector wireless sensor.Keywords
This publication has 22 references indexed in Scilit:
- Passive UHF RFID Tag for Heat Sensing ApplicationsIEEE Transactions on Antennas and Propagation, 2012
- Passive RFID Strain-Sensor Based on Meander-Line AntennasIEEE Transactions on Antennas and Propagation, 2011
- RFID Grids: Part II—ExperimentationsIEEE Transactions on Antennas and Propagation, 2011
- RFID Grids: Part I—Electromagnetic TheoryIEEE Transactions on Antennas and Propagation, 2011
- Electromagnetic Modeling of RFID-Modulated Scattering Mechanism. Application to Tag Performance EvaluationProceedings of the IEEE, 2010
- Bench test for measurement of differential RCS of UHF RFID tagsElectronics Letters, 2010
- Estimation of UHF RFID Reading Regions in Real EnvironmentsIEEE Antennas and Propagation Magazine, 2009
- Analytical Approach to the Backscattering from UHF RFID TransponderIEEE Antennas and Wireless Propagation Letters, 2008
- Differential RCS of RFID tagElectronics Letters, 2007
- Theory and measurement of backscattering from RFID tagsIEEE Antennas and Propagation Magazine, 2006