A switched-beam antenna of monopoles housed in a radial guide with transition to free space

Januar Janapsatya*, Marek E. Bialkowski

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The design of a switched-beam antenna formed by a circular array of monopoles housed inside a radial guide with a transition to free space is presented. Two alternative types of transitions to free space, one using a truncated conducting cone and the other created by a tapered dielectric material at the edge of the radial guide, are described. The use of the radial guide with transition increases the return-loss bandwidth of the array and enables shaping its beam in elevation.

Original languageEnglish
Pages (from-to)115-118
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume43
Issue number2
DOIs
Publication statusPublished - 20 Oct 2004

Keywords

  • Conical horn antenna
  • Dielectric antenna
  • Radial guide
  • Switched-beam array antenna

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