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J Electromagn Eng Sci > Volume 14(3); 2014 > Article
Journal of Electromagnetic Engineering and Science 2014;14(3):317-320.
DOI: https://doi.org/10.5515/JKIEES.2014.14.3.317   
The Design of a Near-Field Antenna with a Ferrite Sheet for UHF EPC Applications
Yi Seul Hwang, Kyung Ho Lee, Yong Seung Jeon, Won Mo Sung
EMW Co. Ltd.
Abstract
In this letter, a small-loop antenna for a mobile UHF RFID device is proposed. To achieve size reduction, a ferrite sheet optimized for a 900 MHz band is applied. The overall dimensions of the antenna are $46mm{times}35mm{times}0.24mm$, and it has a bandwidth of 45 MHz with a return loss of less than -6 dB. The proposed antenna satisfies near and far field UHF EPC global frequency band communications (902-928 MHz).
Key words: Antenna, Electronic Product Code (EPC), Ferrite Sheet, Internet of Things, Radio Frequency Identification (RFID)

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