Multiple band-notched UWB antenna with band-rejected elements integrated in the feed line

Fuguo Zhu, Steven Gao, Anthony T.S. Ho, Raed A. Abd-Alhameed, Chan H. See, Tim W.C. Brown, Jianzhou Li, Gao Wei, Jiadong Xu

Research output: Contribution to journalArticlepeer-review

133 Scopus citations

Abstract

To mitigate potential interferences with coexisting wireless systems operating over 3.3-3.6 GHz, 5.15-5.35 GHz, or 5.725-5.825 GHz bands, four novel band-notched antennas suitable for ultra-wideband (UWB) applications are proposed. These include UWB antennas with a single wide notched band, a single narrow notched band, dual notched bands, and triple notched bands. Each antenna comprises a half-circle shaped patch with an open rectangular slot and a half-circle shaped ground plane. Good band-notched performance is achieved by using high permittivity and low dielectric loss substrate, and inserting quarter-wavelength horizontal/vertical stubs or alternatively embedding quarter-wavelength open-ended slots within the feed line. The results of both simulation and measurement confirm that the gain suppression of the single and multiple band-notched antennas in each desired notched band are over 15 dB and 10 dB , respectively. The radiation pattern of the proposed triple band-notched design is relatively stable across the operating frequency band.

Original languageEnglish
Article number6508829
Pages (from-to)3952-3960
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number8
DOIs
StatePublished - 2013

Keywords

  • Band-notched characteristic
  • gain suppression
  • quarter-wavelength band-rejected elements
  • UWB antenna

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