Analysis of the surface current distributions in a dual band planar antenna for passive RFID tag

Author

Diugwu, Chi´di A. ; Batchelor, John C.

Author_Institution

Electron. Dept., Kent Univ., Canterbury, UK

fYear

2005

fDate

3-8 July 2005

Firstpage

459

Abstract

Measurements are presented on the performance of a novel dual band passive RFID tag antenna constructed from a planar structure which operates at the frequencies of 868 MHz and 2.4 GHz. A study of the surface current distributions of the antenna has been carried out to achieve the optimal location and coupling of the transponder chip. Results are presented for the surface current distributions, resonant frequencies and read range. Data for the study are calculated using CST microwave studio which applies the finite integral technique on approximated perfect boundaries of the planar structure.

Keywords

UHF antennas; computational electromagnetics; current distribution; multifrequency antennas; radiofrequency identification; 2.4 GHz; 868 MHz; approximated perfect boundaries; dual band planar antenna; finite integral technique; passive RFID tag; resonant frequencies; surface current distribution; transponder chip; Antenna measurements; Current distribution; Dual band; Frequency measurement; Integral equations; Microwave theory and techniques; Passive RFID tags; Planar arrays; Resonant frequency; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1552286

Filename

1552286