Small planar coplanar-waveguide-fed dual band-notched monopole ultra-wideband antenna

Nguyen Dang Trang, Dong Hyun Lee, Hyun Chang Park

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

A small coplanar-waveguide-fed monopole ultra-wideband antenna with dual band-notched characteristics is presented. By using a modified ground plane, the bandwidth of the antenna is extended by 28%. Two types of simple slots, L-shaped and semicircular, are cut in the radiating patch to create dual band-notched characteristics in 3.3-3.7 GHz for WiMAX and 5.15-5.825 GHz for WLAN, respectively. A good agreement between measured and simulated results were observed, showing broadband matched impedances from 2.8 to >12 GHz with VSWR <2, except for the two notches. The antenna has a small size of 17× 23 mm2, a stable gain, and a nearly omnidirectional radiation pattern in the entire bandwidth.

Original languageEnglish
Pages (from-to)920-924
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume53
Issue number4
DOIs
StatePublished - Apr 2011

Keywords

  • bandwidth extension
  • dual notched-bands
  • monopole antenna
  • planar
  • small
  • ultra-wideband

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