Miniaturized RFID Tag Antenna Operating at 915 MHz

Author

Soliman, Ezzeldin A. ; Sallam, Mai O. ; De Raedt, Walter ; Vandenbosch, Guy A E

Author_Institution

Phys. Dept., American Univ. in Cairo (AUC), New Cairo, Egypt

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

1068

Lastpage

1071

Abstract

A novel miniaturized radio frequency identification (RFID) tag antenna is introduced in this letter. The antenna is designed to operate at 915 MHz. Its electrical size is (λ₀/30)×(λ₀/30), which makes it among the smallest antennas presented in literature. The new antenna has a “Vivaldi-like” aperture fed with a slot line coupled electromagnetically to a microstrip line. The aperture is loaded with a meander line. The new antenna is thoroughly investigated both theoretically and experimentally. It enjoys a number of appealing characteristics, such as compact size, low profile, flexible impedance tuning, good impedance bandwidth, omnidirectional radiation patterns, low cross-polarization level, and reasonable gain.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; aperture antennas; microstrip lines; omnidirectional antennas; polarisation; radiofrequency identification; slot lines; ίexible impedance tuning; Vivaldi-like aperture fed antenna; antenna design; cross-polarization level; electrical size; frequency 915 MHz; impedance bandwidth; meander line; miniaturized RFID tag antenna; miniaturized radio frequency identification tag antenna; omnidirectional radiation patterns; reasonable gain; slot line electromagnetically coupled microstrip line; Antenna measurements; Antenna radiation patterns; Frequency measurement; Impedance; Radiofrequency identification; Meander-line antennas; miniaturized antennas; printed circuit board (PCB) technology; radio frequency identification (RFID); tag antennas;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2215951

Filename

6289338