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

Saeed Fakhte; Homayoon Oraizi; Ladislau Matekovits

doi:10.1109/TAP.2016.2627520

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

Saeed Fakhte, Homayoon Oraizi, Ladislau Matekovits

School of Engineering

Research output: Contribution to journal › Article › peer-review

74 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 language	English
Pages (from-to)	342-347
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	65
Issue number	1
DOIs	https://doi.org/10.1109/TAP.2016.2627520
Publication status	Published - Jan 2017

Keywords

Anisotropic dielectric resonator antenna (ADRA)
Gain
Impedance bandwidth
Uniaxial DRA

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10.1109/TAP.2016.2627520

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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.",

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AB - 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.

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

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Keywords

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