Research on circularly polarized small disk coupled square ring microstrip antenna for GPS application

Peng Cheng, Yu Tongbin, Li Hongbin, Cao Wenquan

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

2 Scopus citations

Abstract

A circularly polarized (CP) small Disk coupled square ring microstrip antenna is presented in this paper. The CP radiation of the presented antenna is achieved by using two disks under the square ring fed by two probes with 90-degree phase shift. The resonant frequency of the antenna is at 1.575GHz, Which is lowered by about 23.4% as compared to that of the normal patch antenna. The axial ratio (AR) of the antenna is lower than 3dB and the maximum gain is more than 3dB at the resonant frequency, and the isolation between the two disks is lower than -18dB during the operating band. The measured results of the fabricated antenna agree well with the simulated results.

Original languageEnglish
Title of host publicationISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
Pages380-383
Number of pages4
StatePublished - 2013
Event2013 International Symposium on Antennas and Propagation, ISAP 2013 - Nanjing, China
Duration: 23 Oct 201325 Oct 2013

Publication series

NameISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
Volume1

Conference

Conference2013 International Symposium on Antennas and Propagation, ISAP 2013
Country/TerritoryChina
CityNanjing
Period23/10/1325/10/13

Keywords

  • Circularly polarized
  • Square ring
  • microstrip antenna
  • small Disk coupled

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