Dielectric Resonator Antennas: From the Basic to the Aesthetic

Leung, Kwok Wa; Lim, Eng-Hock; Fang, Xiao Sheng

doi:10.1109/jproc.2012.2187872

Cited by 236 publications

(16 citation statements)

References 70 publications

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“…13. The antenna exhibits a simulated 3-dB AR bandwidth of 3.14% (3.45-3.56 GHz) and a measured 3-dB AR bandwidth of 2.8% (3.49-3.59 GHz), which are close to a typical AR bandwidth of single-feed DRA for r ¼ 10 [2]. Since the impedance pass-band completely covers AR pass-band, the overlapping bandwidth of simulated and measured are also 3.14% and 2.8%.…”

Section: Experimental Results and Discusssupporting

confidence: 55%

“…As mentioned in the previous paragraph, the coupling strength of the two resonant modes of DR can be adjusted by changing the length of the perturbation, which means the IEICE Electronics Express, Vol. 16,No.8,[1][2][3][4][5][6] phase difference between the two modes of DR will be changed. When the two resonant modes of DR have the equal amplitude with a quadrature phase difference, a CP radiation will be obtained.…”

Section: Cp Rdramentioning

confidence: 99%

“…Circularly polarized (CP) DRAs have a wide range of application in wireless communication systems since they can avoid the loss of polarization mismatch. Basically, feed networks of broadside CP DRAs can be divided into two categories, namely single and dual feeds [2]. The simplicity of the single-feed circularly polarized antenna makes it an interesting choice for antenna engineers [3].…”

Section: Introductionmentioning

confidence: 99%

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Single-feed circularly polarized rectangular dielectric resonator antenna coupled with dual mode slot-line square ring resonator

Wang

Chen

Liu

et al. 2019

IEICE Electron. Express

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A novel single-feed circularly polarized (CP) rectangular dielectric resonator antenna (RDRA) based on dual mode slot-line square ring resonator (SSRR) is proposed. The dual mode SSRR loaded with a perturbation is used to excite the TE x 111 mode and TE y 111 mode of rectangular dielectric resonator (RDR) simultaneously. By selecting a suitable size of the perturbation, the orthogonal degenerate modes of the SSRR are obtained. Accordingly, the CP radiation pattern of the proposed RDRA is generated from the orthogonal degenerate modes of the SSRR. A prototype is designed and measured. The RDRA has a wide impedance bandwidth of 14.28% (3.16-3.66 GHz). The achieved 3 dB Axial Ratio (AR) bandwidth of the RDRA is about 100 MHz at 3.5 GHz. With the advantages of compact structure, CP performance and easy fabrication, this structure can be a good candidate for 5G communication system in the future.

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Section: Experimental Results and Discusssupporting

confidence: 55%

Section: Cp Rdramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Single-feed circularly polarized rectangular dielectric resonator antenna coupled with dual mode slot-line square ring resonator

Wang

Chen

Liu

et al. 2019

IEICE Electron. Express

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“…For these reasons, various studies have been conducted to obtain high gain property of DRA which have advantages in miniaturization and design flexibility. DRA typically operates on fundamental mode with typical gain of about 5 dBi, but it can achieve high gain when it operates on higher-order mode through a suitable feed structure [1,2].…”

Section: Introductionmentioning

confidence: 99%

High gain spherical DRA operating on higher-order mode excited by microstrip patch

Ahn

Chae

Hwang

et al. 2017

IEICE Electron. Express

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This paper proposed a high gain spherical dielectric resonator antenna (DRA) operating on higher-order mode excited by microstrip patch. A microstrip patch was used to excite TE n01 mode on a dielectric sphere. The excited dielectric sphere operates as higher-order mode spherical DRA with high gain. Impedance matching method for conventional microstrip patch could be applied to the proposed antenna. Size minimization method for the excitation microstrip patch was also described on this paper. A prototype antenna operating on TE 301 mode at 5.8 GHz was fabricated by a ceramic dielectric material, which dielectric constant is 13, and showed the peak gain of 9.03 dBi.

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“…[3][4][5][6] Microstrip antenna presents a low efficiency at high operating frequency because of metallic loss. 7 Compared with microstrip antenna, DRA has stimulated tremendous fundamental and practical interests. DRA can provide a wide range of permittivities or dielectric constants, variety of shapes, and different kind of feeding mechanisms to integrate with the complex wireless system, and owns low losses at high frequency.…”

Section: Introductionmentioning

confidence: 99%

Thermally tunable slot-coupled dielectric resonator antenna

Chen

Wang

et al. 2017

AIP Advances

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Absorption enhancement and total absorption in a graphene-waveguide hybrid structure AIP Advances 7, 025101 (2017); https://doi.org/10.1063/1.4975706The influence of the edge effect on the skyrmion generation in a magnetic nanotrack AIP Advances 7, 025105 (2017) A thermally tunable slot-coupled dielectric resonator antenna (DRA) has been designed and prepared by placing a thermosensitive ceramic resonator onto the slot. Typical magnetic resonance occurs in the resonator, which is closely related to its dielectric constant. Because the dielectric constant of the ceramic resonator decreases as the temperature increases, the resonance frequency of the proposed DRA increases as the temperature increases. The simulated results are in good agreement with the measured ones, which confirms the thermally tunable behavior. This approach provides a way for designing the frequency tunable antennas. © 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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Dielectric Resonator Antennas: From the Basic to the Aesthetic

Cited by 236 publications

References 70 publications

Single-feed circularly polarized rectangular dielectric resonator antenna coupled with dual mode slot-line square ring resonator

Single-feed circularly polarized rectangular dielectric resonator antenna coupled with dual mode slot-line square ring resonator

High gain spherical DRA operating on higher-order mode excited by microstrip patch

Thermally tunable slot-coupled dielectric resonator antenna

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