Experimental study of human body effect on temperature sensor integrated RFID tag

An ultra-high frequency (UHF) passive radio frequency identification (RFID) tag consisting of flexible antenna and built-in temperature sensor chip is utilized for temperature monitoring of human body. A series of experiments were performed to study the body effects on temperature measurements. The tags were mounted at different positions of the body and in the different tag orientations as well. The experimental study of sensor integrated RFID tag shows that performance of the tag is more stable, yielding good signal strength and more consistent temperature measurement given the small form factor and form attachment. Minimizing the deteriorating effect of human body on tag's performance and the accuracy of measurements in different scenerios gives the perspective for implementation in realtime physiological monitoring as per the medical requirements.