Evaluation of Balanced Capacitance Matching Unit for HF RFID Systems in Metallic Environments

A. I. Petrariu; V. G. Gaitan; V. Popa; A. M. Gaitan; I. Finis

doi:10.5755/j01.eee.18.9.2803

Evaluation of Balanced Capacitance Matching Unit for HF RFID Systems in Metallic Environments

Authors

A. I. Petrariu Ştefan cel Mare University of Suceava
V. G. Gaitan Ştefan cel Mare University of Suceava
V. Popa Ştefan cel Mare University of Suceava
A. M. Gaitan Ştefan cel Mare University of Suceava
I. Finis Ştefan cel Mare University of Suceava

DOI:

https://doi.org/10.5755/j01.eee.18.9.2803

Keywords:

metallic environment, HF antenna, RFID tuning circuit, impedance measurement

Abstract

RFID systems are sensitive to metallic environments in the proximity of the reader antenna. These influences produce shifting of the resonance frequency, causing performances degradation for the entire RFID system. Based on the behavior analysis of an HF RFID antenna circuit in the proximity of metallic environments, in this paper are proposed two tuning methods using a simplistic approach and some mathematical determinations. These solutions can be taken into account when it’s necessary to implement a HF RFID system that can offer good performances even if the metallic environments in the proximity of the antenna are constantly changing.

DOI: http://dx.doi.org/10.5755/j01.eee.18.9.2803

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Published

2012-11-09

Issue

Vol. 18 No. 9 (2012)

Section

HIGH FREQUENCY TECHNOLOGY, MICROWAVES

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By virtue of their appearance in this open access journal, papers are free to use with proper attribution in educational and other non-commercial settings with an acknowledgement of the initial publication in the journal.

How to Cite

Petrariu, A. I., Gaitan, V. G., Popa, V., Gaitan, A. M., & Finis, I. (2012). Evaluation of Balanced Capacitance Matching Unit for HF RFID Systems in Metallic Environments. Elektronika Ir Elektrotechnika, 18(9), 39-42. https://doi.org/10.5755/j01.eee.18.9.2803