PROJECT TITLE :

Compact Printable Chipless RFID Systems

ABSTRACT:

2 novel compact printable chipless RFID systems are presented, that are: 1) a dual-polarized (DP) system and a pair of) an orientation insensitive (OI) system. Chipless tags for each the DP and OI systems encompass horizontally (H) and vertically (V) polarized “I” formed slot resonators of different lengths, which create frequency signatures in the backscattered signal. Here, totally different V–H slots are used in the DP tag to double the encoding capacity inside a mounted bandwidth and same V–H slots are utilized in the OI tag to attain orientation insensitivity. Next, for reading these DP and OI tags, a low-profile low-cost wideband DP aperture coupled microstrip patch antenna (ACMPA) with high port-to-port isolation is developed similarly. A reader with DP transmission and reception is capable of reading each the DP and OI tags. These single-sided compact tags are directly printable using conductive ink. Here, DP tags with double data capability are appropriate for fixed orientation applications demanding high information capacity, whereas OI tags are suitable for low knowledge capability applications requiring orientation insensitivity. Moreover, the developed commercially suitable DP ACMPA can conjointly be used universally for reading all different frequency-domain-based tags.