Antenna for Ultra-Wideband Applications with Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators

Chemseddine Zebiri, Huthaifa A. Obeidat, Raed A. Abd-Alhameed*, Djamel Sayad, Issa T.E. Elfergani, Jamal Sulieman Kosha, Widad Faraj A. Mshwat, Chan Hwang See, Mohamed Lashab, Jonathan Rodriguez, Khalil H. Sayidmarie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
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Abstract

A new compact Cylindrical Dielectric Resonator Antenna (CDRA) with a defected ground for ultra-wideband applications is presented. The structure is based on two cylindrical dielectric resonators asymmetrically located with respect to the center of an offset rectangular coupling aperture, with consideration of three and four Dielectric Resonators (DR). The resonant modes generated by the defected ground are studied and investigated. A parametric optimization study of the antenna design has been carried out to determine the optimal dimensions of the defected ground plane, resulting in an impedance bandwidth of over 133% that covers the frequency band from 3.6 GHz to 18.0 GHz. A power gain of about 7.9 dBi has been achieved. Design details and measured and simulated results are presented and discussed.

Original languageEnglish
Article number8884636
Pages (from-to)166776-166787
Number of pages12
JournalIEEE Access
Volume7
DOIs
Publication statusPublished - 28 Oct 2019
Externally publishedYes

Keywords

  • Cylindrical dielectric resonators antenna
  • defected ground structure
  • ultra-wideband

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