Open AccessBroadband design of planar circular tag antenna for UHF RFID system
Author(s) -
Lu J.H.,
Zheng G.T.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.2110
Subject(s) - ultra high frequency , strips , broadband , planar , bandwidth (computing) , radio frequency identification , microstrip antenna , biconical antenna , antenna (radio) , electrical engineering , frequency band , acoustics , slot antenna , telecommunications , physics , optics , computer science , engineering , computer graphics (images) , computer security , artificial intelligence
A planar broadband circular tag antenna operated at ultra‐high frequency (UHF) band for radio‐frequency identification (RFID) system is proposed. By adding a pair of T‐arc‐shaped strips and parasitic step strips, excitation of multi‐resonant modes can approximate reach with the operating half‐power band from 848 to 963 MHz, which covers the required bandwidth for worldwide UHF RFID (860–960 MHz) system. Moreover, the measured read distance of this design can reach 3.8 m, and exhibits good unidirectional radiation patterns in the X – Z and X – Y planes.