Parametric Study of a Fully 3D-Printed Dielectric Resonator Antenna Loaded with a Metallic Cap

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Abstract

This article presents a parametric study of a fully 3D-printed hemispherical dielectric resonator antenna (DRA) using low loss dielectric filament and high-conductive filaments jointly with a low-cost customized dual-extruding 3D printer. The parametric study consisted in the design and evaluation of five different hemispherical DRA topologies with different internal shapes and the same overall size, in which the printing infill percentage of the DRA was reduced. A 3D-printed metallic cap was included in the antenna to compensate for the resonant frequency shift in order to maintain its original dimensions. Measurement results show that all evaluated antennas kept the same resonant frequencies and similar radiation patterns while reducing the overall weight of the topology in 22% of the nominal weight.

Original languageEnglish
Article number9432957
Pages (from-to)73771-73779
Number of pages9
JournalIEEE Access
Volume9
DOIs
StatePublished - 2021
Externally publishedYes

Keywords

  • 3D-printing
  • conductive filaments
  • dielectric filaments
  • dielectric resonator antennas

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