An RHCP/LHCP switchable slotline-fed slot-ring antenna

Min Hua Ho, Ming Ting Wu, Chung I.G. Hsu, Jia Yi Sze

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


In this paper, two irises are orthogonally connected to a slot-ring antenna via short-length slits with each of the slits loaded by a pin diode. This antenna can be switched back and forth between right-hand and left-hand circular polarization by turning on/off the pin diodes. The slot ring is excited by a slotline. The conformability of the slotline with an SMA is accomplished by inserting a CPW-to-slotline transition between them. An experimental antenna is built on a low-cost FR4 substrate in order to validate the design. The antenna's uniplanar architecture and its polarization-diversity property will be very useful in wireless-communication systems.

Original languageEnglish
Pages (from-to)30-33
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number1
Publication statusPublished - 2005 Jul 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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