A low-cost compact RFID tag antenna for toll-gates
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Keywords:
Radio Frequency Identification
toll collection system
antenna
T-matching network
meander-line
E-shape
Abstract
In this paper, we present a low-cost compact Radio Frequency Identification (RFID) tag antenna for the toll collection system in the ultra-high frequency (UHF) bands. The antenna is a printed dipole antenna, which is built on the top-side of a low-cost FR-4 substrate (εr = 4.4 and a thickness of 0.8 mm). A meander-line with E-shaped ending is inserted into each-arm of dipole for the compactness. The antenna is fed by a modified T-matching network for impedance matching with the UCODE G2XM chip. The final design with overall size of 70 mm x 20 mm x 0.8 mm yields a |S11| < –10-dB bandwidth of 250 MHz (800 – 1050 MHz), which covers entire UHF RFID bands (860 – 960 MHz). Also, the antenna yields an omnidirectional radiation pattern with a directivity of 1.3 dB across its operational bandwidth.
References
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Published
Nov 30, 2017
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How to Cite
Thi Ngoc Hien-Doan, Van Khang-Nguyen, Ngoc Chien-Dao. “A Low-Cost Compact RFID Tag Antenna for Toll-Gates”. The University of Danang - Journal of Science and Technology, vol. 11, no. 120.4, Nov. 2017, pp. 12-15, https://jst-ud.vn/jst-ud/article/view/3784.
