Characteristics of superstrate-loaded circular polarization square-ring microstrip antennas on thick substrate

Chow Yen Desmond Sim, Jeen-Sheen Row, Ming Yu Chen

Research output: Contribution to journalArticle

6 Citations (Scopus)


The characteristics of circular-polarization (CP) squarering microstrip antennas loaded with superstrate are studied in this paper. Firstly, several CP antenna prototypes with various substrate thicknesses and inner-slot sizes are designed, and they are excited by a coupling-strip feed in order to overcome the high-impedance problem of the square-ring microstrip antenna. Then, superstrates with different thicknesses and permittivities are attached to the antenna prototypes in order to evaluate their effects on the CP performances. The experimental results show that the effects are more obvious for the square-ring microstrip antenna with a larger inner-slot size.

Original languageEnglish
Pages (from-to)567-570
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 2005 Dec 20


All Science Journal Classification (ASJC) codes

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

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