Abstract:
In this research work,30-bit Chipless RFID tag with humidity sensing capability is presented. Tag basically comprised of two triangular patches named patch A and patch B arranged in a fan shaped manner, thus making it capable for long read range applications. To make the tag suitable for different environmental conditions, Various substrates including Taconic (TLX-8), PET, Rogers RT/Duroid® (5880) and Kapton® HN are used to examine the tag.The final tag is designed on Dupont Kapton® HN in which silver nanoparticle ink is used as radiator. A 55.3 x 55.3 mm2 tag design with a operating frequency range of 2.63 to 9.22 GHz is intended. To ensure the printability and flexibility of the tag, silver nano particle is used as the radiator and Kapton® HN as the substrate. This Kapton® HN substrate based Chipless RFID tag also shows the humidity sensing property along with the better-read range capacity. For low-cost item tagging items, this tag can be the best choice.
