Title :
Planar UHF RFID Tag Antenna With Open Stub Feed for Metallic Objects
Author :
Mo, Lingfei ; Qin, Chunfang
Author_Institution :
Dept. of Control Sci. & Eng., Zhejiang Univ., Hangzhou, China
Abstract :
An open stub feed planar patch antenna is proposed for UHF RFID tag mountable on metallic objects. Compared to conventional short stub feed patch antenna used for UHF RFID tag, the open stub feed patch antenna has planar structure which can decrease the manufacturing cost of the tags. Moreover, the open stub feed makes the impedance of the patch antenna be tuned in a large scale for conjugate impedance matching. Modeling and simulation results are presented which are in good agreement with the measurement data. Finally, differences between the open stub feed patch antenna and the short stub feed patch antenna for UHF RFID tag are discussed.
Keywords :
UHF antennas; impedance matching; planar antennas; radiofrequency identification; UHF RFID tag mountable; impedance matching; metallic objects; open stub feed patch antenna; open stub feed planar patch antenna; planar UHF RFID tag antenna; short stub feed patch antenna; Antenna feeds; Antenna measurements; Costs; Impedance matching; Large-scale systems; Manufacturing; Patch antennas; RFID tags; UHF antennas; UHF measurements; Antennas; impedance matching; planar antenna; radio frequency identification (RFID); tag;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2010.2052570
