Title :
Coupling passive sensors to UHF RFID tags
Author :
Chen, Huan-Yang ; Bae, Sangchul ; Bhadkamkar, Atul ; Mak, Yue Weng ; Van der Weide, Daniel W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Wisconsin - Madison, Madison, WI, USA
Abstract :
Coupling passive sensor data to existing UHF RFID tags explores the possibility for low volume applications without designing a new tag ASIC. The existing UHF RFID system can be used to convey additional data by overlaying a coupling loop on the tag antenna and modulating vector backscatter. The design of the RFID passive sensor prototype is presented and the feasibility of this approach is demonstrated by the experimental results of the vector backscattered signals.
Keywords :
UHF antennas; radiofrequency identification; sensors; UHF RFID tags; coupling passive sensors; radio-frequency identification technologies; tag antenna; vector backscattered signals; Application specific integrated circuits; Backscatter; Couplings; Impedance; Sensor phenomena and characterization; Vectors; UHF RFID; coupling; passive sensor; piggyback; vector backscattered signal;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2012 IEEE
Conference_Location :
Santa Clara, CA
Print_ISBN :
978-1-4577-1153-4
DOI :
10.1109/RWS.2012.6175373
