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RESEARCH PRODUCT
Constrained-Design of Passive UHF RFID Sensor Antennas
Gaetano MarroccoCecilia Occhiuzzisubject
RFID antenna design sensorUltra high frequencybusiness.industryComputer scienceElectrical engineeringWirelessSettore ING-INF/02 - Campi ElettromagneticiSensitivity (control systems)Electrical and Electronic EngineeringbusinessElectrical impedanceWireless sensor networkdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-06-01 | IEEE Transactions on Antennas and Propagation |