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- Title
A Miniaturized Tag Antenna Based on Meandered Line Technique for UHF Radio Frequency Identification Applications.
- Authors
Louragli, El Mustapha; El Hachimi, Younes; Das, Sudipta; Islam, Tanvir; Phani Madhav, Boddapati Taraka; Farchi, Abdelmajid
- Abstract
The current paper describes a compact, long-reading-range tag antenna for radio frequency identification (RFID) applications in the ultra-high frequency (UHF) band, operating at 915 MHz. The antenna’s miniaturized design is achieved through the utilization of the meandering line technique. A T-matching structure matches the chip impedance to that of the antenna. Polytetrafluoroethylene, or PTFE, is used as the substrate for fabrication. The UHF tag’s physical dimensions are 44.4 × 14.4 × 0.8 mm³ . This antenna was first designed, simulated, and then optimized by the software Computer Simulation Technology-Microwave Studio (CST-MWS) before being fabricated. The measured reflection coefficient at 915.5 MHz is approximately −24 dB, exhibiting a bandwidth of 7,9 MHz (911.5 MHz– 919.4 MHz). The proposed tag is shown to have a gain of 1.56 dB and radiation efficiency of 90% at the resonant frequency of 915 MHz. Its long reading range at 915 MHz is roughly 18.41 m, for an EIRP of 4 W. The measured results closely align with the simulated ones.
- Subjects
RADIO antennas; SIMULATION software; SHORTWAVE radio; ANTENNAS (Electronics); REFLECTANCE
- Publication
Progress in Electromagnetics Research Letters, 2024, Vol 122, p37
- ISSN
1937-6480
- Publication type
Article
- DOI
10.2528/pierl24052402