Reconfigurable circularly polarized microstrip antenna on a slotted ground

Won Sang Yoon, Sang Min Han, Seongmin Pyo, Jaehoon Lee, In Chul Shin, Young Sik Kim

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A compact square patch antenna with reconfigurable circular polarization (CP) at 2.4 GHz is proposed. Circular polarization is generated by an arc-shaped slot on the ground plane. In order to switch the CP orientation, the current flow direction of the patch is reconfigured via the PIN diodes mounted on the slot. As the slot and bias circuit are not placed on the patch side, the proposed antenna radiates a CP wave without alteration in the main beam direction. From the experimental results, the impedance and CP bandwidths of the proposed antenna have been demonstrated for up to 80 MHz and 25 MHz, respectively.

Original languageEnglish
Pages (from-to)468-471
Number of pages4
JournalETRI Journal
Issue number3
Publication statusPublished - 2010 Jun


  • Circular polarization
  • Microstrip patch antenna
  • PIN diodes
  • Polarization diversity
  • Reconfigurable polarization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Electrical and Electronic Engineering


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