Planar UHF tag antenna with bandwidth enhancement

Author

Jui-Han Lu ; Jr-Ying Su

Author_Institution

Dept. of Electron. Commun. Eng., Nat. Kaohsiung Marine Univ., Kaohsiung, Taiwan

fYear

2012

fDate

4-7 Dec. 2012

Firstpage

1028

Lastpage

1030

Abstract

A novel planar loop tag antenna mounted on the plastic pallets for UHF RFID system is proposed. By insetting the U-shaped slot and a pair of rectangular parasitic strips into the proposed loop tag antenna, the resonant mode close to UHF 900 MHz band is excited to enhance the operating bandwidth. The obtained impedance bandwidth across the operating band can reach about 174 MHz (18.8 %) for UHF band. Also, with bidirectional pattern, the measured reading distance is about 2.0 m as the proposed loop tag antenna mounted on the plastic pallets.

Keywords

UHF antennas; loop antennas; planar antennas; radiofrequency identification; U-shaped slot; UHF RFID system; UHF band; bandwidth enhancement; bidirectional pattern; frequency 900 MHz; impedance bandwidth; operating bandwidth; planar UHF tag antenna; planar loop tag antenna; plastic pallets; rectangular parasitic strips; resonant mode; Antenna measurements; Bandwidth; Dipole antennas; Impedance; Radiofrequency identification; Slot antennas; UHF antennas; Loop antenna; RFID; Tag;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2012 Asia-Pacific

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-1330-9

Electronic_ISBN

978-1-4577-1331-6

Type

conf

DOI

10.1109/APMC.2012.6421814

Filename

6421814