By Topic

High chip reactance matching for ultra-high-frequency radio frequency identification tag antenna design

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $33
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
H. M. Chen ; Institute of Photonics and Communications, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan ; S. A. Yeh ; Y. F. Lin ; S. C. Pan
more authors

This study describes a high impedance-matched dipole antenna, which is composed of an inductive T-loop and a small bent dipole radiator with a slit for ultra-high-frequency (UHF) radio frequency identification (RFID) tag design. Simple adjustments of the T-loop and dipole radiator of the antenna allow for easy control of the antenna resistance and inductive reactance, from which a high chip reactance (or high Q-factor) requirement may be readily satisfied. For a conjugate match to the FEC-MM Gen2 microchip impedance of 46-j796 at 915 MHz, a compact (36 mm 28 mm) tag antenna with a Q-factor of 17 was designed. The T-loop coupling mechanism can excite two resonance modes with reactance match to enhance the impedance bandwidth for solving the relative high Q-factor of the RFID tag. The fabricated tag sensitivity of about -3.5-dBm, read range of 2.4-m on the x-z and y-z planes and measured orientation radiation patterns were obtained in the desired frequency band.

Published in:

IET Microwaves, Antennas & Propagation  (Volume:6 ,  Issue: 5 )