Broadband CPW-fed circularly polarized square slot antenna with combining C-shaped strip and asymmetry ground plane

Te Hsing Chen, Deng Yin Wang, Wen Hua Tu

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

2 Scopus citations

Abstract

A new broadband circularly polarized (CP) square slot antenna with coplanar waveguide (CPW) fed is designed in this paper. An asymmetry ground plane makes the adjacent resonant mode to merge into a wide operation bandwidth, and the C-shaped structure can offer the current path, two orthogonal electric fields with a 90°phase difference for exciting a circular polarization radiation wave. The measured impedance bandwidth (VSWR ≤ 2) is 0.92 GHz (46% relative to the center frequency at 2 GHz). The 3-dB axial ratio bandwidth (ARBW) is 0.65 GHz (32.5% relative to the center frequency at 2 GHz), and antenna peak gain is 3.31 dBi with gain variations of less than 1 dB.

Original languageEnglish
Title of host publication2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013
Pages1073-1075
Number of pages3
DOIs
StatePublished - 2013
Event2013 3rd Asia-Pacific Microwave Conference, APMC 2013 - Seoul, Korea, Republic of
Duration: 5 Nov 20138 Nov 2013

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC

Conference

Conference2013 3rd Asia-Pacific Microwave Conference, APMC 2013
Country/TerritoryKorea, Republic of
CitySeoul
Period5/11/138/11/13

Keywords

  • axial ratio
  • Broadband
  • circularly polarized
  • coplanar waveguide
  • slot antenna

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