Conformal RFID antenna design suitable for human monitoring and metallic platforms

This paper presents the design of a conformal, low profile RFID (Radio Frequency Identification) tag for applications like human monitoring and metallic cylinder tracking. The design of the tag is based on simple microstrip-type structure. For human monitoring study, firstly realized tag gain vs read range curves are presented. Input impedance and radiation pattern measurements are performed for the tag in a realistic setup and compared to simulation human model. For metallic cylinder tracking study, the input impedance and radiation patterns for the tag are evaluated through simulations. Finally, exhaustive read range measurements are performed for the tag on different surfaces (human, metal).