Publication: Design of radio frequency identification (RFID) fabric tag antenna
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Date
2023-07
Authors
Muhammad Arif Fikri bin Shamsuddin
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Abstract
In textile or fabric retail industry, they usually use barcodes to track the products. This process requires human intervention to scan the barcode and results in
less efficiency. Also, the ineffectiveness of product tracing methods like barcodes employed in retail store raises the issue of stealing. In education industry, most school still using manual method of taking the attendance of the students. Thus, by employing RFID technology into these systems will result in better efficiency and performance. Therefore, this project presents the design of UHF RFID fabric tag antenna which resonates at frequency of 920MHz. A woven conductive fabric is used as the radiating patch of the antenna. The conductivity of the conductive fabric is calculated from the measured resistance and impedance using multimeter and vector network analyzer, respectively. Then, the conductivity value is inserted in the CST to simulate the conductive fabric design. The conductive fabric antenna is designed with two different dimension to analyse its performance in term of the reflection coefficient, radar cross section, and read range. One is designed with the dimension of 40mm x 23mm (Antenna A), and the other one designed with dimension of 80mm x 40mm (Antenna B). The fabric antenna designed with Antenna B has a better performance than Antenna A. Its radar cross section and read range is 1.96x10-3 m2 and 5.5 m, respectively. The UHF RFID fabric tag antenna designed using Antenna B have the potential to be applied on clothes and can be implemented as access control application, attendance system at schools or university, and other applications.