Broadband Ground-Embedded Dielectric Resonator Antenna with Half-Space Coverage for 5G Applications

Lei Guo*, Yipei Qiao, Wenwen Yang, Kwok Wa Leung

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

This paper presents a novel ground-embedded dielectric resonator (DR) antenna (DRA) which has a broad bandwidth and wide half-space coverage, based on the concept of complementary superimposition. By using the embedded ground, horizontal and vertical electric currents can be introduced. Their radiation can be combined with that of the original DRA, significantly boosting radiation at low elevation angles. This results in broad half-power beamwidths (HPBWs) of ~180° in two elevation planes. The design achieves wide half-space coverage across a wide bandwidth by exciting two adjacent modes. To validate the theory, the proposed antenna was fabricated and measured. Measured results show a broad usable impedance bandwidth of 2.35-3.55 GHz (40.68%), with HPBWs of ~180°. The maximum gains are 2.54 and 2.13 dBi at θ = 0° (boresight) and θ = 90°, respectively. Due to its embedded structure, our antenna is compact, making it promising for 5G applications that generally require both wide beamwidth and impedance bandwidth. © 2024 IEEE.
Original languageEnglish
Pages (from-to)1191-1196
JournalIEEE Transactions on Antennas and Propagation
Volume73
Issue number2
Online published25 Dec 2024
DOIs
Publication statusPublished - Feb 2025

Research Keywords

  • Dielectric resonator antenna
  • half-power beamwidth
  • wide beamwidth
  • wideband

Fingerprint

Dive into the research topics of 'Broadband Ground-Embedded Dielectric Resonator Antenna with Half-Space Coverage for 5G Applications'. Together they form a unique fingerprint.

Cite this