Wideband RFID tag antenna for metallic surfaces using proximity-coupled feed

  • Hae Won Son*
  • , Seung Hwan Jeong
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

A low-cost, wideband patch antenna for radio frequency identification tags mountable on metallic surfaces is presented. A novel proximity-coupled feed structure, in which the direction of the microstrip feed line is parallel to that of the resonant length of the radiating patch and one end of the feed line is shorted to the ground, is proposed to perform simple and wideband impedance matching between the antenna and tag chip without any additional matching networks. The proposed design is verified by simulation and measurement. The measured 3-dB return-loss bandwidth is about 49 MHz, which totally covers the 26-MHz bandwidth requirement in North America. The measured read range is about 8.9 m when the tag antenna is mounted on a metal plate with a size of 200 × 200 mm2.

Original languageEnglish
Article number5756635
Pages (from-to)377-380
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume10
DOIs
StatePublished - 2011

Keywords

  • Proximity-coupled feed
  • radio frequency identification (RFID)
  • tag antenna
  • wideband antenna

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Electrical & Electronic
  • Engineering - Petroleum

Fingerprint

Dive into the research topics of 'Wideband RFID tag antenna for metallic surfaces using proximity-coupled feed'. Together they form a unique fingerprint.

Cite this