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A planar folded ultrawideband antenna with gap-loading

  • Shi-Wei Qu
  • , Cheng-Li Ruan
  • , Quan Xue

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

A novel ultrawideband planar gap-loaded folded antenna is proposed in this paper, which is derived from an ordinary three-wire folded antenna with the gap-loading technique. The fabricated monopole antenna has a small electrical size and a measured bandwidth of 8.8:1 ranging from 1.48 to 13 GHz. The operating principles of the proposed antenna, including the excitation of three main resonant modes and their effects on the return loss, are analyzed. The proposed antenna exhibits a relatively stable radiation pattern, as proved experimentally in the paper. In the end, the parametric studies are performed for practical applications. © 2007 IEEE.
Original languageEnglish
Pages (from-to)216-220
JournalIEEE Transactions on Antennas and Propagation
Volume55
Issue number1
DOIs
Publication statusPublished - Jan 2007

Research Keywords

  • Broadband antenna
  • Folded antenna
  • Gap loading
  • Planar antenna

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