Helical reflector antenna with a wideband CP for RFID reader

Dong Zo Kim, Hyun Sung Tae, Kyoung Sub Oh, Moon Que Lee, Jong Won Yu

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

11 Scopus citations

Abstract

A novel helical reflector antenna is presented to cover the whole UHF RFID band (860∼960MHz). The proposed antenna has a ground reflector and is composed of two antenna layers which are connected by via to form a helical structure. The total length of the proposed antenna is 1∼1.3 λ to have the higher antenna impedance. And the antenna gain is increased by using a ground reflector. The size of the proposed antenna is 200 × 200 × 35 mm3 similar to commercial RFID patch antenna with a high gain. It satisfies -10dB return loss and 3dB axial ratio in the RFID band. The measured antenna gain is approximately 6.5∼9dBic.

Original languageEnglish
Title of host publicationAPMC 2009 - Asia Pacific Microwave Conference 2009
Pages1032-1035
Number of pages4
DOIs
StatePublished - 2009
EventAsia Pacific Microwave Conference 2009, APMC 2009 - Singapore, Singapore
Duration: 7 Dec 200910 Dec 2009

Publication series

NameAPMC 2009 - Asia Pacific Microwave Conference 2009

Conference

ConferenceAsia Pacific Microwave Conference 2009, APMC 2009
Country/TerritorySingapore
CitySingapore
Period7/12/0910/12/09

Keywords

  • Circular polarization
  • Helical antenna
  • RFID reader antenna
  • Reflector antenna
  • Wide bandwidth

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