A compact broadband patch antenna for UHF RFID tags

Jun Zh Huang, Peng H. Yang, Weng Cho Chew, Terry Tao Ye

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A small broadband patch antenna for RFID tags is proposed in this paper. Using inset-feed technique together with two asymmetrical slots embedded from two non-radiation edges deep into the center of the square patch, two resonances with similar radiation characteristics can be excited. It thus increases the bandwidth of the antenna. The two slots can also reduce the size of the patch, and the inset feeding provides the required input reactance for matching as well. A prototype is fabricated and tested, which shows that half-power bandwidth of this small tag antenna (65 mm by 65 mm by 2 mm) can cover the entire UHF band (860 MHz - 960 MHz). The read range is over 2 meters when mounted on metallic platform.

Original languageEnglish (US)
Title of host publicationAPMC 2009 - Asia Pacific Microwave Conference 2009
Pages1044-1047
Number of pages4
DOIs
StatePublished - Dec 1 2009
EventAsia Pacific Microwave Conference 2009, APMC 2009 - Singapore, Singapore
Duration: Dec 7 2009Dec 10 2009

Publication series

NameAPMC 2009 - Asia Pacific Microwave Conference 2009

Other

OtherAsia Pacific Microwave Conference 2009, APMC 2009
CountrySingapore
CitySingapore
Period12/7/0912/10/09

Keywords

  • Broadband patch antenna
  • Compact antenna
  • Low-profile antenna
  • Platform-tolerant tag
  • RFID
  • Tag antenna

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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