Design of a Miniaturized Dual-Band Antenna using Slotted Techniques for 2.45/5.8 GHz Microwave Band RFID Utilizations
Received: 3 November 2024 | Revised: 12 December 2024 | Accepted: 18 December 2024 | Online: 24 January 2025
Corresponding author: Younes El Hachimi
Abstract
In this study, a compact dual-band antenna for Radio Frequency Identification (RFID) readers operating at 2.45 GHz and 5.8 GHz is proposed. It is mounted on a FR4 substrate with a dielectric permittivity of 4.3. The proposed structure occupies a total area of 728 mm², with dimensions of 28×26 mm². The antenna features a rectangular radiating patch with integrated slots to enhance performance. A precisely tuned rectangular transmission line feeds the antenna, ensuring efficient signal coupling. The ground plane design incorporates a geometry derived from the slot technique, consisting of a rectangular loop, a square loop, and an attached rectangular element. This slot-based approach facilitates antenna miniaturization and enables the generation of two distinct resonant frequencies, significantly improving overall performance. The antenna was designed, simulated, and analyzed using the CST Microwave Studio (CST MWS) tool. The resulting structure is compact and straightforward, exhibiting suitable gain, coherent radiation patterns, and efficient impedance matching. Its design allows easy integration into handheld RFID readers operating in the microwave band.
Keywords:
compact, dual-band, RFID, slots technique, readerDownloads
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Copyright (c) 2024 Younes El Hachimi, El Mustapha Louragli, Sahaya Anselin Nisha Arockiam, Varalakshmi Subramanian, Sudipta Das, Abdelmajid Farchi
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