![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
A novel design of planar omnidirectional tag antenna for ultra high frequency (UHF) radio frequency identification (RFID) is proposed. With the use of a square loop accompanying dual dipole strips, the measured half-power bandwidth of the proposed broadband tag antenna can reach 143 MHz (857–1000 MHz), which includes the entire operating bandwidth for worldwide UHF RFID system. Meanwhile, with omnidirectional reading pattern, the measured reading distance is about 11.0 m as it is mounted on the carton. Good tag sensitivity was obtained across the desired frequency band.
Acknowledgment
This paper was supported by the Ministry of Education, Taiwan, ROC, under Industry-Academy Cooperation Project MOE-100E-07-018 and 101E-07-024.