Title :
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
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;
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
DOI :
10.1109/iWEM.2012.6320353
