Compact UHF RFID reader antenna using bended fold dipole structure for mobile RFID system

Author

Xie, Ze-ming ; Lai, Xiao-Zheng ; Hu, Ru-jia

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China

Volume

1

fYear

2011

fDate

10-13 July 2011

Firstpage

414

Lastpage

417

Abstract

This paper presents the design of a small planar loop antenna for applications in mobile RFID readers within cell phones. Compactness of the loop antenna, crucial to size reduction in the antennas designed for mobile handsets, is realized by bending a folded-dipole in a rectangle shape. Two arms are inserted to the loop antenna to increase the electrical length of the structure. Furthermore, a small parasitic patch is created at the back of the antenna to adjust the antenna impedance and to increas the electrical length. It´s shown by simulation and experiment results that the antenna is efficient to reduce antenna dimension for UHF RFID reader.

Keywords

UHF antennas; dipole antennas; microstrip antennas; mobile antennas; radiofrequency identification; antenna dimension reduction; antenna impedance; bended fold dipole structure; compact UHF RFID reader antenna; folded-dipole bending; mobile RFID system; mobile handsets; parasitic patch; rectangle shape; size reduction; small planar loop antenna design; Antenna measurements; Couplings; Dipole antennas; Magnetic fields; Radiofrequency identification; UHF antennas; Bended fold dipole; RFID; Reader antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics (ICMLC), 2011 International Conference on

Conference_Location

Guilin

ISSN

2160-133X

Print_ISBN

978-1-4577-0305-8

Type

conf

DOI

10.1109/ICMLC.2011.6016724

Filename

6016724