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2014-06-23
Fractal-Based Triangular Slot Antennas with Broadband Circular Polarization for RFID Readers
By
Progress In Electromagnetics Research C, Vol. 51, 121-129, 2014
Abstract
Equilateral-triangular slot antennas with modified edges for wideband circular polarization are proposed in this paper. Circular polarization was firstly obtained by adding two asymmetric perturbations to two edges of triangular slot. Then fractal-like boundaries were adopted in the antenna design for size reduction and broadband operation. Two antenna prototypes for RFID readers were fabricated to cover RFID UHF band and ISM 2.4 GHz band, respectively. Measured results show that the presented antennas obtain fairly wide 3-dB axial ratio bandwidths of 15.7% (820-960 MHz) and 19.8% (2.18-2.66 GHz).
Citation
Jianjun Wu Xueshi Ren Zhaoxing Li Ying-Zeng Yin , "Fractal-Based Triangular Slot Antennas with Broadband Circular Polarization for RFID Readers," Progress In Electromagnetics Research C, Vol. 51, 121-129, 2014.
doi:10.2528/PIERC14052501
http://www.jpier.org/PIERC/pier.php?paper=14052501
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