A Novel Fractal Antenna for UHF Near-Field RFID Readers

Author

Pakkathillam, Jayaram Kizhekke ; Kanagasabai, Malathi ; Varadhan, Chitra ; Sakthivel, P.

Author_Institution

Dept. of Electron. & Commun. Eng., Anna Univ., Chennai, India

Volume

12

fYear

2013

fDate

2013

Firstpage

1141

Lastpage

1144

Abstract

This letter accentuates a novel fractal protruded tapered slot (FPTS) antenna and its magnetic field analysis for ultra-high frequency (UHF) near-field (NF) radio frequency identification (RFID) readers. The principle of variable distance opposite direction current (VDODC) is employed here. The antenna operates over a bandwidth of 101 MHz (852-953 MHz) with a center frequency of 897 MHz. The interrogation area of 243 × 190 mm² is achieved for this antenna at a distance of 50 mm from the plane of the antenna in z-direction. The antenna tested with the presence of different liquids and the performance is evaluated. The field analysis shows that antenna becomes handy over potential applications like tracking chemicals and pharmaceutical management.

Keywords

UHF antennas; fractal antennas; magnetic fields; radiofrequency identification; FPTS antenna; UHF near field RFID reader; VDODC; bandwidth 101 MHz; distance 50 mm; fractal antenna; fractal protruded tapered slot; frequency 897 MHz; magnetic field analysis; radio frequency identification; ultra high frequency; variable distance opposite direction current; Antenna measurements; Antennas; Fractals; Magnetic field measurement; Magnetic fields; Radiofrequency identification; Fractals; near-field magnetic induction communication (NFMIC); radio frequency identification systems (RFIDs); ultra-high frequency (UHF);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2013.2281069

Filename

6590011