Electromagnetic analysis of UHF near-field RFID tag antenna

Author

Dhaouadi, M. ; Mabrouk, M. ; Ghazel, A. ; Tedjini, S.

Author_Institution

CIRTACOM, Univ. of Carthage, Tunis, Tunisia

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

In this paper, the performance of Near-Field UHF RFID systems is investigated by means of electromagnetic analyses. A novel antenna is presented for ultra high frequency (UHF) near-field radio frequency identification (RFID) applications. The reactance component of tag antenna considered chip impedance (-193j) is conjugated and matched for maximum power transmission. The antenna is fabricated by using Polyester (PET) dielectric substrate with permittivity 3.2. The size of antenna is 38 × 18 × 0.5 mm. The HFSS simulator is used for optimizing the proposed antenna. The antenna Return Loss is of 14.0 dB for the worst case in the middle of UHF range, better than 31.4 dB at 900 MHz.

Keywords

UHF antennas; radiofrequency identification; HFSS simulator; UHF near-field RFID tag antenna; antenna return loss; electromagnetic analysis; frequency 900 MHz; loss 14 dB; loss 31.4 dB; polyester dielectric substrate; power transmission; size 0.5 mm; size 18 mm; size 38 mm; ultra high frequency near-field radio frequency identification; Antenna radiation patterns; Impedance; Magnetic fields; Metals; Radiofrequency identification; UHF antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050654

Filename

6050654