Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2019.30.5.348

Distance Sensing of an RFID Tag Using RFID Reader Frequency Control  

Baik, Kyung-Jin (Department of Electrical Engineering,, Kookmin University)
Jang, Byung-Jun (Department of Electrical Engineering,, Kookmin University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.30, no.5, 2019 , pp. 348-355 More about this Journal
Abstract
UHF and microwave RFID systems are widely applied in various fields because they can read a plurality of tag information within a radius of several meters ahead of the RFID reader. However, they cannot detect the position of the tag in applications that recognize only a tag at a specific position. In this study, we propose a new RFID system that can interrogate the tag of a specific location selectively by using the position information of the tag. This can be done by only adjusting the reader's operating frequency. To verify the feasibility of the proposed system, we implemented a 2.4 GHz RFID reader whose frequency can be varied by using a phase-locked loop circuit and a backscattered tag. Experimental results confirm that the tag position can be sensed exactly.
Keywords
Doppler Radar; Distance Sensing; 2.4 GHz Radar; Multi-Tone Radar; Gesture Sensing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 T. Sakogawa, K. Aoki, and F. Kuroki, "A technique to narrow down radiation patterns of broad beam antenna operationally and its application to security gate to prevent shoplifting based on monopulse system," in 2017 11th European Conference on Antennas and Propagation(EuCAP), Paris, 2017, pp. 1945-1948.
2 J. Huang, Y. Zhang, and S. Luo, "A simple estimator for localization of moving targets using dual-frequency radar with minimum system architecture," IEEE Sensors Letters, vol. 2, no. 1, p. 3500604, Mar. 2018.
3 C. Gu, J. Lien, "A two-tone radar sensor for concurrent detection of absolute distance and relative movement for gesture sensing," IEEE Sensors Letters, vol. 1, no. 3, p. 16865659, Jun. 2017.
4 장병준, 송호준, "UHF RFID 수신기의 위상 다이버시티 및 최적 I/Q 신호결합 방법에 관한 연구," 한국전자파학회논문지, 19(4), pp. 442-450, 2008년 4월.   DOI
5 장병준, 박재형, 육종관, 문준호, 이경중, "하나의 원형편파 안테나와 PLL을 이용하여 소형이면서도 개선된 잡음 성능을 갖는 2.4 GHz 바이오 레이다 시스템," 한국전자파학회논문지, 20(12), pp. 1325-1332, 2009년 12월.   DOI
6 장병준, 장병준, "2.4 GHz 도플러 레이더의 주파수 조정을 통한 이동체 거리 센싱," 한국전자파학회논문지, 30(2), pp. 152-159, 2019년 2월.   DOI
7 M. D. Daniel, The RF in RFID: Passive UHF RFID in Practice, Amsterdam, Elsevier Newnes, 2008.
8 C. M. Park, H. Y. Jang, and J. H. Han, "What characteristics make an enterprise more proactive toward innovation? Case of adopting RFID at Kumho Tire in Korea," in 2016 IEEE International Conference on Management of Innovation and Technology (ICMIT), Bangkok, 2016, pp. 309-312.
9 B. Jang, H. Yoon, "Range correlation effect on the phase noise of an UHF RFID reader," IEEE Microwave and Wireless Components Letters, vol. 18, no. 12, pp. 827-829, Dec. 2008.   DOI