Vol. 12

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Design of a Novel Dual-Loop Gate Antenna for Radio Frequency Identification (RFID) Systems at Low Frequency Band

By Supakit Kawdungta, Chuwong Phongcharoenpanich, and Danai Torrungrueng
Progress In Electromagnetics Research C, Vol. 12, 1-14, 2010


In this paper, a dual-loop gate antenna is designed to generate the magnetic field distribution in various directions. It is applied to Radio Frequency Identification (RFID) systems for animal identification operating at the low frequency (LF) band of 125 kHz and 134.2 kHz. The percentage of volume of magnetic field intensity is introduced and used as a figure of merit in the design. The optimum antenna parameters are also designed by the genetic algorithm (GA) in conjunction with the Numerical Electromagnetic Code (NEC). The prototype antenna was fabricated and tested to confirm the antenna performance in the LF-RFID system for animal identification. It is found that the dual-loop gate antenna can be efficiently used in the LF-RFID system.


Supakit Kawdungta, Chuwong Phongcharoenpanich, and Danai Torrungrueng, "Design of a Novel Dual-Loop Gate Antenna for Radio Frequency Identification (RFID) Systems at Low Frequency Band," Progress In Electromagnetics Research C, Vol. 12, 1-14, 2010.


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