J Korean inst Electromagn Sci Search

CLOSE


J Electromagn Eng Sci > Volume 11(1); 2011 > Article
Journal of the Korean Institute of Electromagnetic and Science 2011;11(1):1-4.
DOI: https://doi.org/10.5515/JKIEES.2011.11.1.001   
Design of a Flexible Planar RFID Tag Antenna with Low Performance Degradation from Nearby Target Objects
Jae-Yul Choo1, Jeong-Ki Ryoo2, Ho-Sung Choo3
1Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)
2RFID Research Lab., LS Industrial Systems Co., Ltd.
3School of Electronic and Electrical Engineering, Hongik University
Abstract
In this letter, we propose a novel tag antenna that has low performance degradation with nearby dielectric material. We obtained a stable reading performance and a broad matching bandwidth on nearby dielectric materials by employing a T-matching network with thick line width and capacitively slot-loaded arms. We then built the proposed antenna and measured the tag sensitivity to examine the reading characteristics with nearby dielectric materials. The measured results clearly demonstrate stable tag sensitivity with various nearby dielectric materials, such as foam, acrylic-plastic, glass, and ceramic plates. To more closely observe the antenna characteristics with nearby dielectric materials, we also examined the impedance variation and surface current distribution with respect to the dielectric constant of nearby target objects, which ranged from $1{times}{varepsilon}_0$ to $16{times}{varepsilon}_0$.
Key words: UHF RFID Tag, Stable Reading Performance, Tag Sensitivity
TOOLS
Share :
Facebook Twitter Linked In Google+
METRICS Graph View
  • 1 Crossref
  •   
  • 407 View
  • 4 Download
Related articles in JEES

ABOUT
ARTICLE CATEGORY

Browse all articles >

BROWSE ARTICLES
AUTHOR INFORMATION
Editorial Office
#706 Totoo Valley, 217 Saechang-ro, Yongsan-gu, Seoul 04376, Korea
Tel: +82-2-337-9666    Fax: +82-2-6390-7550    E-mail: admin-jees@kiees.or.kr                

Copyright © 2019 by The Korean Institute of Electromagnetic Engineering and Science. All rights reserved.

Developed in M2community

Close layer
prev next