A high-gain circularly-polarized dual-band antenna array for RFID reader applications

Author

Huang, Ting-Jui ; Hsu, Heng-Tung

Author_Institution

Dept. of Commun. Eng., Yuan Ze Univ., Chungli, Taiwan

fYear

2012

fDate

6-9 Aug. 2012

Firstpage

1

Lastpage

2

Abstract

In this paper, we propose a high-gain circularly-polarized (CP) dual-band antenna array for UHF (902-928 MHz) and microwave band (2.4-2.5 GHz) RFID applications. The proposed antenna consists of dual-ring radiators excited through apertures as the basic element. A 2-by-2 array formed by sequentially-rotated configuration exhibited 8 dBic gain at UHF band and 10 dBic gain at microwave band. Very good CP performance with axial ratio less than 1 dB was achieved at both bands.

Keywords

UHF antennas; antenna radiation patterns; microwave antenna arrays; multifrequency antennas; radiofrequency identification; CP dual-band antenna array; RFID reader; UHF band; axial ratio; dual-ring radiators; frequency 2.4 GHz to 2.5 GHz; frequency 902 MHz to 928 MHz; high-gain circularly-polarized dual-band antenna array; microwave band; Abstracts; Frequency measurement; Optical polarization; Optical propagation; Optical variables measurement; UHF antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics; Applications and Student Innovation (iWEM), 2012 IEEE International Workshop on

Conference_Location

Chengdu, Sichuan

Print_ISBN

978-1-4673-3000-8

Electronic_ISBN

978-1-4673-2998-9

Type

conf

DOI

10.1109/iWEM.2012.6320353

Filename

6320353