Strong coupling induced notched bands of UWB antennas using meta-surfaces

Jinbiao Zhu, Wen Jiang, Yuquan Liu, Pengyu Yin, Lili Guo

Research output: Contribution to journalArticlepeer-review

Abstract

The meta-surface is introduced into the design of band-notched monopole antennas with single/dual/triple notched bands around 3.6/5.5/7.2 GHz for ultra-wideband (UWB) communication. We show that strong coupling effects between the meta-surface and the antenna would be created through tuning the orientations of the meta-cells according to the field distributions on the antenna surface, and eventually, filter the unwanted radiations of the antenna. Especially, by simply attaching different meta-surfaces on the back of the antenna, the band-notched properties are shown to be changeable without hurting the original structure of the antenna. Both simulation and measurement results demonstrate the monopole with replaceable meta-surfaces has achieved an UWB operating band ranging from 3 to 9 GHz for voltage standing wave ratio (VSWR) ≤ 2 with single/dual/triple notched bands covering frequencies around 3.6/5.5/7.2 GHz. Such a design would obtain significant notched performances for the desired bands and maintain the good radiations in the operating frequency, which make it a suitable candidate for UWB applications.

Original languageEnglish
Pages (from-to)843-851
Number of pages9
JournalInternational Journal of Microwave and Wireless Technologies
Volume15
Issue number5
DOIs
StatePublished - 21 Jun 2023

Keywords

  • Band-notched antenna
  • coupling effects
  • meta-surfaces
  • reconfigurable
  • ultra-wideband antennas

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