High gain rectangular dielectric resonator antenna using uniaxial material at fundamental mode

Saeed Fakhte, Homayoon Oraizi, Ladislau Matekovits

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The use of uniaxial anisotropic materials in rectangular dielectric resonator antennas (DRAs) increases the radiation from their side walls compared to their top walls due to the fundamental radiating mode, which leads to the improvement of boresight directivity. The different boundary conditions on the walls of DRA are also investigated. The main phenomenon of gain enhancement is also theoretically explained. The proposed method is validated by comparing the simulation results for the cases of isotropic DRAs and anisotropic DRAs (ADRAs). The measured results for an aperture-coupled uniaxial ADRA show an impedance bandwidth of 20.65% between 3.17 and 3.9 GHz and a peak broadside gain of 8.4 dB.

Original languageEnglish
Pages (from-to)342-347
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Volume65
Issue number1
DOIs
Publication statusPublished - Jan 2017

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