Dual-band circularly polarized hexagonal-slot antenna

Nijee Jeevanandham*, Nasimuddin, Kush Agarwal, A. Alphones

*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

A dual-band, circularly polarized, hexagonal-shaped slot antenna is proposed and studied using microstrip feed with L-shaped stub. The antenna consists of a hexagonal-shaped slot with a microstrip feed and L-shaped stub. An impedance transformer is used to improve the impedance matching of the slot antenna. The slot and feeding structure are fabricated on a low cost FR4 substrate. The measured results of the antenna prototype are 15.7% (3.2-3.75 GHz)\15.5% (4.42-5.1 GHz) for 3-dB axial ratio bandwidths and 8.6% (3.41-3.70 GHz)\15.5% (4.47-5.20 GHz) for VSWR<2 impedance bandwidths, respectively, for the 3.5 GHz and 4.5 GHz operating frequency bands. The measured gain is around 4.3 dBic for 3.5 GHz band and 3.0 dBic for 4.5 GHz band at the boresight.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2012 conference proceedings
Subtitle of host publicationspace for microwaves : EuRAD 2012
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages508-511
Number of pages4
ISBN (Electronic)9782874870293, 9782874870262
ISBN (Print)9781467324717
Publication statusPublished - 2012
Externally publishedYes
Event2012 9th European Radar Conference, EuRAD 2012 - Held as Part of 15th European Microwave Week, EuMW 2012 - Amsterdam, Netherlands
Duration: 31 Oct 20122 Nov 2012

Other

Other2012 9th European Radar Conference, EuRAD 2012 - Held as Part of 15th European Microwave Week, EuMW 2012
Country/TerritoryNetherlands
CityAmsterdam
Period31/10/122/11/12

Keywords

  • Circular polarization
  • dual band
  • microstrip feed
  • slot antenna
  • wideband

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