Analytical considerations for an ISO/IEC14443 compliant SmartCard transponder

Author

Gebhart, M.

Author_Institution

NXP Semicond. Austria GmbH, Gratkorn, Austria

fYear

2011

fDate

15-17 June 2011

Firstpage

9

Lastpage

16

Abstract

We derive and use an analytical formula to describe some aspects in the RF behaviour of Smartcard transponders at the contactless air interface. The aspects we consider contain minimum operating H-field, thermal loading, card loading and maximum load modulation depending on transponder equivalent circuit parameters. We not only consider results, but also carefully discuss the approximations and simplifications we make, which should give an understanding of the principle and thereby allow for adaptations to selected fabrication technologies among the variety of existing options.

Keywords

IEC standards; ISO standards; radiofrequency identification; smart cards; transponders; ISO IEC14443 compliant smart card transponder; RF behaviour; card loading; contactless air interface; fabrication technology; maximum load modulation; minimum operating H-field; thermal loading; transponder equivalent circuit parameter; Antennas; Capacitance; Equivalent circuits; Inductance; RLC circuits; Resonant frequency; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (ConTEL), Proceedings of the 2011 11th International Conference on

Conference_Location

Graz

Print_ISBN

978-1-61284-169-4

Electronic_ISBN

978-3-85125-161-6

Type

conf

Filename

5969902