Wide-Beamwidth Uni-Lateral Dielectric Resonator Antenna Using Higher-Order Mode

Lei Guo; Kwok Wa Leung; Nan Yang

doi:10.1109/LAWP.2018.2881534

Wide-Beamwidth Uni-Lateral Dielectric Resonator Antenna Using Higher-Order Mode

Lei Guo, Kwok Wa Leung, Nan Yang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

41 Citations (Scopus)

Abstract

For the first time, a uni-lateral rectangular dielectric resonator antenna (DRA) is designed using two DR modes, namely the fundamental TE^x_δ₁₁ mode and higher-order TE^x₂_δ₁ mode. The former and latter provide the broadside and quasi-omnidirectional radiation patterns, respectively. By combining the radiation fields of the two resonant modes, uni-lateral radiation with wide 3-dB beamwidths can be obtained. For demonstration, a uni-lateral rectangular DRA was designed in 2.4-GHz WLAN band. Across the WLAN band, the DRA has a measured front-to-back ratio (FTBR) of higher than 15 dB. It is found that the measured maximum FTBR of the DRA is 36.6 dB, whereas the measured 3-dB beamwidths of the two principal radiation planes are both wider than 174°.

Original language	English
Pages (from-to)	93-97
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	18
Issue number	1
Online published	15 Nov 2018
DOIs	https://doi.org/10.1109/LAWP.2018.2881534
Publication status	Published - Jan 2019

Research Keywords

Dielectric resonator antenna
higher-order mode
unidirectional radiation

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title = "Wide-Beamwidth Uni-Lateral Dielectric Resonator Antenna Using Higher-Order Mode",

abstract = "For the first time, a uni-lateral rectangular dielectric resonator antenna (DRA) is designed using two DR modes, namely the fundamental TExδ11 mode and higher-order TEx2δ1 mode. The former and latter provide the broadside and quasi-omnidirectional radiation patterns, respectively. By combining the radiation fields of the two resonant modes, uni-lateral radiation with wide 3-dB beamwidths can be obtained. For demonstration, a uni-lateral rectangular DRA was designed in 2.4-GHz WLAN band. Across the WLAN band, the DRA has a measured front-to-back ratio (FTBR) of higher than 15 dB. It is found that the measured maximum FTBR of the DRA is 36.6 dB, whereas the measured 3-dB beamwidths of the two principal radiation planes are both wider than 174°.",

keywords = "Dielectric resonator antenna, higher-order mode, unidirectional radiation",

author = "Lei Guo and Leung, {Kwok Wa} and Nan Yang",

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T1 - Wide-Beamwidth Uni-Lateral Dielectric Resonator Antenna Using Higher-Order Mode

AU - Guo, Lei

AU - Leung, Kwok Wa

AU - Yang, Nan

PY - 2019/1

Y1 - 2019/1

N2 - For the first time, a uni-lateral rectangular dielectric resonator antenna (DRA) is designed using two DR modes, namely the fundamental TExδ11 mode and higher-order TEx2δ1 mode. The former and latter provide the broadside and quasi-omnidirectional radiation patterns, respectively. By combining the radiation fields of the two resonant modes, uni-lateral radiation with wide 3-dB beamwidths can be obtained. For demonstration, a uni-lateral rectangular DRA was designed in 2.4-GHz WLAN band. Across the WLAN band, the DRA has a measured front-to-back ratio (FTBR) of higher than 15 dB. It is found that the measured maximum FTBR of the DRA is 36.6 dB, whereas the measured 3-dB beamwidths of the two principal radiation planes are both wider than 174°.

AB - For the first time, a uni-lateral rectangular dielectric resonator antenna (DRA) is designed using two DR modes, namely the fundamental TExδ11 mode and higher-order TEx2δ1 mode. The former and latter provide the broadside and quasi-omnidirectional radiation patterns, respectively. By combining the radiation fields of the two resonant modes, uni-lateral radiation with wide 3-dB beamwidths can be obtained. For demonstration, a uni-lateral rectangular DRA was designed in 2.4-GHz WLAN band. Across the WLAN band, the DRA has a measured front-to-back ratio (FTBR) of higher than 15 dB. It is found that the measured maximum FTBR of the DRA is 36.6 dB, whereas the measured 3-dB beamwidths of the two principal radiation planes are both wider than 174°.

KW - Dielectric resonator antenna

KW - higher-order mode

KW - unidirectional radiation

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M3 - RGC 21 - Publication in refereed journal

SN - 1536-1225

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EP - 97

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

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ER -

Wide-Beamwidth Uni-Lateral Dielectric Resonator Antenna Using Higher-Order Mode

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