Dual-polarized chipless RFID tag with temperature sensing capability

In this paper dual-polarized chipless RFID tag with temperature sensing capability is proposed. The tag is constructed by incorporating a V-polarized and H-polarized slots containing either same or different code to increase the tag data capacity. The tag is having dual performance of tagging and temperature sensing simultaneously. The integration of temperature sensing is performed by utilizing the resonant frequency of a specific slot of the tag to represent the sensor change parameter. Different encoding techniques for different codes arrangement has been presented. The radiation characteristics of the chipless tag are investigated and analyzed using the finite element method and are compared with that obtained by the finite integration technique.