Design of novel hexagonal s-band patches antenna array for RFID applications

Zohra Slimane, Mohammed Amin Rabah, Abdelhafid Abdelmalek, Kouther Yamani, Kaoutar Hachemi

Abstract


The design and study of the behavior of antennas adapted to radio-frequency identification RFID tags take on all their importance because they must respond to integration problems and therefore the need to design a structure with minimal dimensions, without however deteriorating their performance. The rise in frequency makes it possible to have short wavelengths so that it becomes possible to have a great integrationas as well as very fast bit rate. But, this induces a smaller range due to the propagation losses according to the model of Friis. In this article, a new patch antenna array for microwave frequency band in radio-frequency identification RFID applications will be presented. The antenna covers the band for the central frequency of 2.45 GHz with better loss characteristics. In addition, the antenna offers a high gain at this frequency. After the digital design of the antenna element, which was carried out using the commercial software CST MWS®, the antenna is printed on an FR4 substrate with a dielectric constant of 4.3 and a thickness of 1.6 mm. The comparison between the simulation results and the measurement results proves that the antenna achieves satisfactory impedance matching and radiation efficiency.

Keywords


Antenna array; CST; Microwave; Patch; RFID; S-band; Hexagon

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DOI: https://doi.org/10.11591/eei.v11i3.3476

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