Ring-slot-coupled microstrip patch antenna for circular polarization

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5 Citations (Scopus)


A new design of aperture-coupled microstrip antennas for circular polarization (CP) is presented. The CP microstrip antenna is excited by using a series microstrip-line-feed configuration through the coupling of a ring slot in the ground. The effects of different ring-slot sizes on CP performance are investigated. The experimental results show that, when the mean radius of the ring slot is increased, the CP operating frequency is significantly decreased and a wider CP bandwidth can also be obtained.

Original languageEnglish
Pages (from-to)453-456
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number5
Publication statusPublished - 2005 Mar 5

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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