Improving the Sensitivity of Chipless RFID Sensors: The Case of a Low-Humidity Sensor
Giada Marchi, Viviana Mulloni, O. Hammad Alì, Leandro Lorenzelli, Massimo Donelli
Abstract
This study is supposed to introduce a valid strategy for increasing the sensitivity of chipless radio frequency identification (RFID) encoders. The idea is to properly select the dielectric substrate in order to enhance the contribution of the sensitive layer and to maximize the frequency shift of the resonance peak. The specific case of a chipless sensor suitable for the detection of humidity in low-humidity regimes will be investigated both with numerical and experimental tests.
Topics & Concepts
Chipless RFIDSensitivity (control systems)HumidityRadio-frequency identificationLow frequencyDielectricAcousticsElectronic engineeringSubstrate (aquarium)EncoderComputer scienceMaterials scienceEngineeringElectrical engineeringTelecommunicationsPhysicsThermodynamicsGeologyComputer securityOperating systemOceanographyRFID technology advancementsBluetooth and Wireless Communication TechnologiesEnergy Harvesting in Wireless Networks