Novel miniature monopole tag antenna for UHF RFID applications

  • Liu H
  • Yang C
  • Ku C
  • 17

    Readers

    Mendeley users who have this article in their library.
  • 9

    Citations

    Citations of this article.

Abstract

A novel miniature monopole tag antenna for passive UHF radio frequency identification (RFID) operation is presented. The antenna possesses a two-sided structure that is printed on an FR4 substrate and fed by a 50-?? microstrip line. By properly using helical strips and vias, the antenna size can be reduced to a small volume of 10 (L) ?? 9.5 (W) ?? 0.8 (H) mm3 to be easily integrated within various portable devices. A miniaturized quasi-lumped circuit is also designed to achieve a good impedance matching between the antenna and the tag chip. Experimental results demonstrate that the antenna has a suitable operating band about 914-939 MHz and also nearly omnidirectional radiation patterns with proper gain. Moreover, the proposed compact tag antenna, capable of achieving a maximum readable range about 5.6 m with an effective isotropic radiated power (EIRP) equal to 4 W, is well suitable for RFID applications.

Author-supplied keywords

  • Effective isotropic radiated power (EIRP)
  • Monopole
  • Quasi-lumped circuit
  • Radio frequency identification (RFID)
  • Tag antenna

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text

Authors

  • Hsien Wen Liu

  • Chang Fa Yang

  • Chia Hao Ku

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free