A tuning transformer for the automatic adjustment of resonant loop antennas in RFID systems

Proceedings of the IEEE International Conference on Industrial Technology

Volumn 2, Issue , 2004, Pages 912-916

  Steiner, Gerald ^a   Zangl, Hubert ^a   Fulmek, Paul ^b   Brasseur, Georg ^a  

^a GRAZ UNIVERSITY OF TECHNOLOGY   (Austria)

^b VIENNA UNIVERSITY OF TECHNOLOGY   (Austria)

Author keywords

Loop antenna; Resonance tuning; RFID; Tunable inductance

Indexed keywords

ANTENNAS; COMMUNICATION SYSTEMS; ELECTRIC TRANSFORMERS; ELECTRIC WINDINGS; IMPEDANCE MATCHING (ACOUSTIC); RADIO SYSTEMS; SIGNAL PROCESSING;

LOOP ANTENNA; RESONANCE TUNING; RFID; TUNABLE INDUCTANCE;

IDENTIFICATION (CONTROL SYSTEMS);

EID: 27944466466     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (10)

1. Avante ACCESS-TRAKKER, http://www.aitechnology.com/smartcardlockwebsite/ rfidreaders.html, July 2004.
2. K. Finkenzeller, RFID Handbook, Second Edition, John Wiley & Sons, 2003.
3. International Standard ISO/IEC 15693, Identification Cards - Contactless integrated circuit(s) cards - Vicinity Cards, First edition 2000.
4. J. P. Bradin, "Reader for a radio frequency identification system having automatic tuning capability", United States Patent US6650227, 1999.
5. R. Watkins, "Auto-tuning scanning proximity reader", United States Patent US6317027, 2001.
6. B. Boeshans, D. Farden and R. Nelson, "Design, testing and computer modeling of a tunable loop antenna", IEEE International Symposium on Electromagnetic Compatibility, vol. 2, pp. 705-710, 2002.
7. M. E. Chakera and M. A. Laughton, "Nonlinear tuned circuits", IEEE Trans. on Communication Technology, vol. 15, no. 2, pp. 310-311, 1967.
8. D. Medini and S. Ben-Yaakov, "A current-controlled variable-inductor for high frequency resonant power circuits", Applied Power Electronics Conference and Exposition (APEC'94), vol. 1, pp. 219-225, 1994.
9. Y. Bi and D. C. Jiles, "Finite element modeling of an electrically variable inductor", IEEE Trans. on Magnetics, vol. 35, no. 5, pp. 3517-3519, 1999.
10. E. Gikow, "New technique for electronic tuning of VHF power amplifiers", IEEE Trans. on Parts, Materials and Packaging, vol. 6, no. 1, pp. 20-25, 1970.