Design and analysis of 13.56MHz RFID antenna based on modified wheeler equation: A practical approach

Author

Salleh, Syahrizal ; Salleh, Kamarulzamin ; Hashim, Mohd Faizal ; Majid, Zulkifli Abd

Author_Institution

Electron. Eng. Dept., Univ. Teknol. MARA, Shah Alam, Malaysia

fYear

2010

fDate

11-14 April 2010

Firstpage

326

Lastpage

330

Abstract

An RFID tag antenna in coil form with typical credit card dimension (78 mm × 41 mm) which is suitable for ISO 14443 standards was built virtually in Electromagnetic simulator and its result was later validated with identical physical antennas. A simplified equation of inductance in microstrip form by H. A. Wheeler is then compared to result found using data from the simulation and modified to fit it. Consecutively, specific matching impedance for each coil is calculated which the matching impedance represents an RFID tag plus its compensation impedance. The coil and the matching impedance will then be modelled in an RF system simulator and its impedance plot will be explained.

Keywords

HF antennas; ISO standards; radiofrequency identification; ISO 14443 standards; RFID tag antenna; electromagnetic simulator; frequency 13.56 MHz; modified wheeler equation; Coils; Credit cards; Equations; ISO standards; Impedance; Inductance; Microstrip; RFID tags; Radio frequency; Radiofrequency identification; Antenna Matching; Near-Field Antenna; RFID tag;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Devices, Systems and Applications (ICEDSA), 2010 Intl Conf on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-6629-0

Type

conf

DOI

10.1109/ICEDSA.2010.5503048

Filename

5503048