Title :
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
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;
Conference_Titel :
Machine Learning and Cybernetics (ICMLC), 2011 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4577-0305-8
DOI :
10.1109/ICMLC.2011.6016724
