A novel broadband antenna for passive UHF RFID transponders offering global functionality

✍ Scribed by Zhijiang Fang; Ronghong Jin; Junping Geng; Jing Sun

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 263 KB
• Volume: 49
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.22877

✦ Synopsis

Abstract

In this letter, a novel broadband dipole antenna for UHF RFID transponder, which offers global functionality across different regulatory areas is proposed. The proposed antenna has a measured bandwidth from 0.83 to 1 GHz (18.5%) where the power reflection coefficient is below −10 dB for conjugate matching with an EPC class 1 Gen 2 chip, which is sufficient to cover the whole band (0.86–0.96 GHz) regulated by EPC global class 1 Gen 2 protocol (ISO/IEC 18000 6c). Additionally, an equivalent circuit model for such kind of antenna is presented to illustrate the broadband impedance matching characteristic between the antenna and the chip. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2795–2798, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22877