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J Electromagn Eng Sci > Volume 13(4); 2013 > Article
Journal of Electromagnetic Engineering and Science 2013;13(4):208-213.
DOI: https://doi.org/10.5515/JKIEES.2013.13.4.208   
Design of a Tag Antenna for UHF RFID Food Systems
Dong-Beom Shin1, Jung Nam Lee2, Heyung-Sub Lee1, Sang-Yeoun Lee1, Byeong-Sam Kim3
1Smart Things Cognition Research Team, Electronics and Telecommunications Research Institute
2Mobile RF Research Team, Electronics and Telecommunications Research Institute
3Food Safety and Distribution Research Group, Korea Food Research Institute
Abstract
This paper proposes a tag antenna for radio frequency identification (RFID) food system. The RFID tag antenna is designed and fabricated based on the rectangular loop concept used in the UHF band (Korean and Japanese standards, 916.7-923.5MHz). The proposed tag antenna is composed of a radiation patch, sensor tag chip, temperature sensor, oscillator, and battery. We conjugated matching between the tag antenna and the sensor tag using a U-shaped stub. Details of the proposed tag antenna design and the simulated and measured results are presented and discussed.
Key words: Food Systems, Semi-Active Sensor, UHF RFID

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