Gain Enhancement of Low-Profile Dielectric Resonator Antenna With a Loading Metal

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

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2718-2722
Number of pages5
Journal / PublicationIEEE Antennas and Wireless Propagation Letters
Volume23
Issue number9
Online published27 May 2024
Publication statusPublished - Sept 2024

Abstract

A gain enhancement method for a planar square dielectric resonator antenna (DRA) is investigated using a loading metal. It deploys a conventional aperture-coupled square DRA. By loading the top face of the DRA with a pair of shorting metallic patches, two different resonance modes can be excited and combined to enhance the gain. To further increase the gain, additional shorting patches are introduced near the four corners of the top DRA surface. A gain enhancement of 2.6 dB was simulated. To validate the idea, a prototype was fabricated and measured. A unidirectional radiation pattern was measured, with a realized gain of 9.9 dBi and a sidelobe level of -10 dB. © 2024 IEEE.

Research Area(s)

  • Antenna measurements, Antennas, Dielectric resonator antenna, Gain, gain enhancement, Loading, loading metal, low profile, Metals, planar antenna, Prototypes, Resonant frequency, Dielectric resonator antenna (DRA)