Calculation and Measurement of RFID Tag Critical Frequency

  • Peter Vestenicky
  • Martin Vestenicky
  • Juraj Palecek
Keywords: RFID, tag, transponder, quality factor, critical frequency, mathematical model

Abstract

This paper deals with undesirable phenomenon in inductively coupled RFID system, i. e. by fading out the amplitude modulation of carrier signal in RFID reader. It is caused by inaccurate tuning of RFID transponder resonant circuit. The phenomenon is described by mathematical model of the inductively coupled RFID system. The numerical and graphical results of mathematical modelling is then compared by measurement of resonant frequency of real (tuneable) RFID circuit on which the amplitude modulation fades out.

Author Biographies

Peter Vestenicky

Department of Control and Information Systems, Faculty of Electrical Engineering, University of Zilina, Slovakia

Martin Vestenicky

Department of Telecommunications and Multimedia, Faculty of Electrical Engineering, University of Zilina, Slovakia

Juraj Palecek

Amicus SK s.r.o, Skalica, Slovakia

Published
2013-07-31
How to Cite
Vestenicky, P., Vestenicky, M., & Palecek, J. (2013). Calculation and Measurement of RFID Tag Critical Frequency. Communications - Scientific Letters of the University of Zilina, 15(2A), 96-101. Retrieved from http://journals.uniza.sk/index.php/communications/article/view/662
Issue
Vol 15 No 2A (2013)
Section
Articles