Title :
Planar UHF RFID tag antenna with bandwidth enhancement
Author :
Lu, Lui-Han ; Hung, Kai-Ting
Author_Institution :
Dept. of Electron. Commun. Eng., Nat. Kaohsiung Marine Univ., Kaohsiung, Taiwan
Abstract :
A novel design of planar compact inverted-E tag antenna mounted on the metallic objects for UHF RFID system is proposed. By insetting the slit into the upper horizontal strip of the proposed compact tag antenna, a new resonant mode close to the fundamental mode of the inverted-E antenna is excited to enhance the operating bandwidth. The obtained impedance bandwidth across the operating band can reach about 123 MHz (13.7 %) for UHF band. Also, with directional pattern, the measured reading distance is about 2.5 m as the proposed compact tag antenna mounted on the metallic object.
Keywords :
UHF antennas; planar antennas; radiofrequency identification; bandwidth enhancement; metallic object; planar UHF RFID tag antenna; planar compact inverted-E tag antenna; resonant mode; Semiconductor device measurement; UHF RFID; directional; tag antenna;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
DOI :
10.1109/CSQRWC.2011.6037141
