Wide-beam circularly polarized composite cavity-backed crossed scythe-shaped dipole

Son Xuat Ta, Jea Jin Han, Richard W Ziolkowski, Ikmo Park

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

2 Scopus citations

Abstract

In this paper, a wide-beam circularly polarized (CP) composite cavity-backed crossed scythe-shaped dipole is proposed. Each dipole arm contains a meander line whose end is shaped like a scythe chine to accomplish a significant reduction in the radiator size. The scythe-shaped dipoles are crossed through a 90°phase delay line of a vacant-quarter printed ring in order to generate CP radiation and broadband impedance matching. The crossed scythe-shaped dipole is incorporated with a cavity-backed reflector to improve the radiation pattern in terms of the CP radiation beamwidth and front-to-back ratio. The proposed antenna yields broad impedance-matching and 3-dB axial-ratio bandwidths, a high front-to-back ratio, and a wide beamwidth.

Original languageEnglish (US)
Title of host publicationAsia-Pacific Microwave Conference Proceedings, APMC
Pages1085-1087
Number of pages3
DOIs
Publication statusPublished - 2013
Event2013 3rd Asia-Pacific Microwave Conference, APMC 2013 - Seoul, Korea, Republic of
Duration: Nov 5 2013Nov 8 2013

Other

Other2013 3rd Asia-Pacific Microwave Conference, APMC 2013
CountryKorea, Republic of
CitySeoul
Period11/5/1311/8/13

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Keywords

  • cavity-backed reflector
  • Circular polarization
  • meander line
  • phase delay line
  • scythe shape

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ta, S. X., Han, J. J., Ziolkowski, R. W., & Park, I. (2013). Wide-beam circularly polarized composite cavity-backed crossed scythe-shaped dipole. In Asia-Pacific Microwave Conference Proceedings, APMC (pp. 1085-1087). [6695028] https://doi.org/10.1109/APMC.2013.6695028