Premium
Design of a planar wideband patch antenna for UHF RFID tag
Author(s) -
Bashri Mohd Saiful Riza,
Ibrahimy Muhammad Ibn,
Motakabber S. M. A.
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28389
Subject(s) - hfss , ultra high frequency , return loss , microstrip antenna , wideband , patch antenna , bandwidth (computing) , impedance matching , antenna tuner , acoustics , microstrip , planar , microwave , electrical impedance , biconical antenna , electrical engineering , electronic engineering , engineering , antenna (radio) , slot antenna , computer science , physics , coaxial antenna , telecommunications , computer graphics (images)
In this article, a planar wideband microstrip patch antenna for ultrahigh frequency (UHF) radio identification (RFID) tag is presented. By incorporating two resonating C‐shape patches, two resonances are excited close to each other to create wide impedance bandwidth to cover the entire operating frequency of UHF RFID system between 860 and 960 MHz for universal metal mountable tag. For complex impedance matching between the antenna input terminal and the referenced microchip whose impedance is Z chip = (31 − j212) Ω, a small rectangular loop feed structure was utilized where both of the resonating patches are magnetically coupled. The antenna design and simulation were carried out using finite element method based software, Ansoft HFSS v13. The simulated and measured radiation patterns at operating frequency of 915 MHz are in good agreement. The simulated and measured impedance bandwidth (Return Loss ≥ 3 dB) of 159 and 155 MHz were obtained that are well above the required 100 MHz bandwidth. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1579–1584, 2014