Study of Mutual Coupling of Typical Commercial UHF RFID Tags in a High-Density Environment

American journal of engineering and applied sciences

article

Gbamélé Konan Fernand¹  Akpata Edouard¹  Assamoi Claude Daniel¹  Gnamele N’tcho Assoukpou Jean¹  Youan Bi Tra Jean Claude¹  Ouattara Yelakan Berenger¹  Konan Kouassi Fransisco² 

[1] Laboratory of Technology of the University Félix Houphouët Boigny;Higher Normal School

关键词: UHF RFID Tags;    Mutual Coupling;    Mutual Impedance;    Printed Dipole;    T-Match;    Printed Meander Dipole;   

DOI  :  10.3844/ajeassp.2022.209.219

学科分类：工程和技术（综合）

来源: Science Publications

【 摘 要 】

In the context of high-densitypassive UHF (Ultra High Frequency) RFID (Radio Frequency Identification) tagtechnology, the problem of mutual coupling has to be taken into account as oneof the performance criteria of UHF RFID systems. In practical applications,mutual coupling changes the intrinsic parameters of the antennas attached tothese tags, i.e., the impedance matching of the antenna and the chip and theradiation pattern. The objective of this study is to study the performance ofsome commercial tag prototypes by theirlevel of sensitivity to mutual coupling. The 3D initialization model of thePrinted Dipole, Printed T-Match, and Printed Meander tags were used to directlyextract the mutual impedance values in various scenarios by the ANSYS HFSSsoftware and compare them with the MATLAB software. The simulated results showthe effectiveness of this study in obtaining a clear understanding of theperformance of the tags. These results open new perspectives on the study ofmutual tag-to-tag coupling for research and will help users to make betterdecisions in the choice of UHF RFID tags for the radio frequency identificationof products.

【 授权许可】

CC BY