Title :
A Novel Broadband UHF RFID Tag Antenna Mountable on Metallic Surface
Author :
Xu, Li ; Tian, Li-Bin ; Hu, Bin-Jie
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou
Abstract :
A novel broadband UHF RFID tag antenna mountable on metallic surface is presented. The structures of T-matching network and double symmetrical radiating patches shorted to ground plane are employed. The proposed antenna has a half power bandwidth of 11.4% when placed in free air and covers two major segments of the UHF RFID band when mounted on metallic surface. The proposed antenna also has good radiation characteristics and cross-polarization performances in both conditions. The results show that the proposed antenna can work not only in free air but also on metallic surface for UHF RFID band.
Keywords :
UHF antennas; antenna radiation patterns; broadband antennas; microstrip antennas; polarisation; radiofrequency identification; T-matching network; UHF RFID band; broadband UHF RFID tag antenna; cross-polarization performances; double symmetrical radiating patches; free air; metallic surface; Bandwidth; Broadband antennas; Degradation; Dipole antennas; Impedance matching; North America; RFID tags; Radiofrequency identification; Surface impedance; UHF antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.531
