Compact circularly polarized microstrip antenna for RFID handheld reader applications

Nasimuddin*, Xianming Qing, Zhi Ning Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

19 Citations (Scopus)


A compact circularly polarized microstrip antenna (CPMA) with slits is proposed for radio frequency identification (RFID) handheld reader applications. The slits are cut onto the square patch radiator diagonally to reduce antenna size with circular polarization (CP) operation. A measured 3-dB axial-ratio (AR) bandwidth of around 4.0 MHz with 19.0 MHz impedance bandwidth at centre frequency of 920 MHz is achieved. The overall antenna size is 0.276λ0 x 0.276λ0 x 0. 014λ0. The proposed antenna can be a good candidate for RFID portable or handheld reader applications.

Original languageEnglish
Title of host publicationAsia Pacific Microwave Conference, APMC 2009
Place of PublicationPistacaway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Electronic)9781424428021
ISBN (Print)9781424428014
Publication statusPublished - 2009
Externally publishedYes
EventAsia Pacific Microwave Conference 2009, APMC 2009 - Singapore, Singapore
Duration: 7 Dec 200910 Dec 2009


OtherAsia Pacific Microwave Conference 2009, APMC 2009


  • Circular polarization
  • Microstrip antenna
  • Reader antenna
  • RFID
  • Slits


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