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

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

2128

Lastpage

2131

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.531

Filename

4340306