A Novel Ceramic Fractal Antenna for Modern RFID System

Author

Lin, Bin ; Zhou, Jianhua ; You, Baiqiang ; Xu, Weiming

Author_Institution

Dept. of Electron. Eng., Xiamen Univ., Xiamen

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

A novel double band ceramic fractal antenna working at 2.4 GHz and 5.8 GHz is designed for the minimization requirement of RFID tag antenna. The simulated results show that when VSWR (vertical standing wave ratio) is less than 2, the antenna absolute bandwidths are up to 0.39 GHz and 1.85 GHz in 2.4 GHz and 5.8 GHz respectively , with relative bandwidths up to 15.20% and 35.82% respectively,. Considering engineering processes, the influence of dielectric constant epsiv_r, and substrate thickness are studied in detail. At last we proposed an optimized antenna with dual fractal structure, which can cover all primary frequency bands of RFID system, from 2.17 GHz to 7.05 GHz.

Keywords

UHF antennas; ceramics; fractal antennas; microwave antennas; multifrequency antennas; permittivity; radiofrequency identification; substrates; RFID tag antenna; VSWR; ceramic fractal antenna; dielectric constant; dual band antenna; frequency 2.4 GHz; frequency 5.8 GHz; minimization requirement; substrate thickness; vertical standing wave ratio; Bandwidth; Ceramics; Dielectric constant; Dielectric substrates; Fractal antennas; Frequency; Microstrip antennas; RFID tags; Radiofrequency identification; Ultra wideband antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4244-2107-7

Electronic_ISBN

978-1-4244-2108-4

Type

conf

DOI

10.1109/WiCom.2008.530

Filename

4678438