Q‐factors and designs of CP microstrip antennas

S. J. Choi, Y. T. Lo, Weng Cho Chew

Research output: Contribution to journalArticlepeer-review


This paper discusses simple designs for circularly polarized antennas without the need of phase shifters and power dividing networks. In particular, design formulas of several commonly used microstrip antennas are derived and quantitative information on the antenna Q‐factor is presented to facilitate the design. Design examples are given to illustrate the proposed design procedure.

Original languageEnglish (US)
Pages (from-to)357-361
Number of pages5
JournalMicrowave and Optical Technology Letters
Issue number10
StatePublished - Oct 1989


  • Circularly polarized antennas
  • Q‐factors
  • microstrip antennas

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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