Articles with "dielectric resonator" as a keyword



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Metal‐Loaded Dielectric Resonator Metasurfaces for Radiative Cooling

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Published in 2017 at "Advanced Optical Materials"

DOI: 10.1002/adom.201700460

Abstract: Tailoring emissivity and absorptivity of structured material surfaces to match atmospheric transmission spectral windows can lead to radiative cooling that consumes no external energy. Recent advances in nanofabrication technology have facilitated progress in the realization… read more here.

Keywords: dielectric resonator; radiative cooling; loaded dielectric; metal loaded ... See more keywords
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Circularly polarized cylindrical dielectric resonator antenna excited by square ring slot with a T‐shaped microstrip line

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Published in 2017 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.30773

Abstract: In this article, a cylindrical dielectric resonator antenna (CDRA) excited by a 45° rotated square ring slot with a T-shaped coupling microstrip line is investigated for circularly polarized (CP) operation. The proposed antenna shows the… read more here.

Keywords: dielectric resonator; band; microstrip line; antenna ... See more keywords
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A novel cylindrical dielectric resonator antenna based on Fibonacci series approach

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Published in 2019 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.31887

Abstract: A novel cylindrical dielectric resonator antenna based on Fibonacci series approach is presented in this letter. Because of the presence of major and minor axis, the antenna characteristics resemble an Elliptical DRA. Optimized radius to… read more here.

Keywords: antenna; cylindrical dielectric; dielectric resonator; ghz ... See more keywords
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Magnetic quadrupole mode excitation of a cylindrical dielectric resonator antenna using planar feed

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Published in 2019 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32042

Abstract: In this article, excitation of the magnetic quadrupole mode of a cylindrical dielectric resonator antenna, designated as the HEM21δ mode, using planar feeding technique is discussed for the first time. Two types of planar feeds—a… read more here.

Keywords: quadrupole mode; cylindrical dielectric; dielectric resonator; feed ... See more keywords
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Two‐port ring‐shaped dielectric resonator‐based diversity radiator with dual‐band and dual‐polarized features

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Published in 2019 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32053

Abstract: In this article, a two‐port dielectric resonator (DR)‐based multi‐input multi‐output (MIMO) antenna is designed and examined. Some of the vital characteristics of designed antenna are: (a) modified plus shaped aperture fed ring DRA provides dual… read more here.

Keywords: radiator; dielectric resonator; two port; ring shaped ... See more keywords
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Modular transmit/receive arrays using very‐high permittivity dielectric resonator antennas

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Published in 2018 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.26784

Abstract: Dielectric resonator antenna (DRAs) are compact structures that exhibit low coupling between adjacent elements and therefore can be used as MRI transmit arrays. In this study, we use very high permittivity materials to construct modular… read more here.

Keywords: dielectric resonator; modular transmit; high permittivity;
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Calculation of the resonant frequency of a rectangular dielectric resonator antenna using perturbation theory

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Published in 2018 at "Journal of Computational Electronics"

DOI: 10.1007/s10825-018-1284-8

Abstract: A theoretical investigation is carried out using the perturbation method to calculate the resonant frequency of a horizontally and vertically perturbed rectangular dielectric resonator antenna (RDRA). The accuracy of the proposed method is validated with… read more here.

Keywords: using perturbation; rectangular dielectric; dielectric resonator; perturbation ... See more keywords
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Sapphire Stacked Rectangular Dielectric Resonator Aperture Coupled Antenna for C-Band Applications

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Published in 2019 at "Wireless Personal Communications"

DOI: 10.1007/s11277-019-06437-4

Abstract: This paper presents a novel design of antenna using sapphire. An aperture coupled two- layer stacked rectangular dielectric resonator antenna structure design consists of sapphire and TMM13i. Due to sapphire and TMM13i physical attributes such… read more here.

Keywords: aperture coupled; rectangular dielectric; stacked rectangular; antenna ... See more keywords
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Dielectric Resonator Antennas with Frequency Stability Under Severe Temperature Variations Based on Li2MgTi3O8 Ceramic Matrix Added with Bi2O3

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Published in 2018 at "Journal of Electronic Materials"

DOI: 10.1007/s11664-018-6664-0

Abstract: This paper presents the application of the Li2MgTi3O8 (LMT) ceramic matrix added with small quantities (0 wt.%, 1 wt.%, 3 wt.%, and 5 wt.%) of Bi2O3 for building and studying dielectric resonator antennas (DRA) to operate in microwave frequency… read more here.

Keywords: resonator antennas; dielectric resonator; frequency; ceramic matrix ... See more keywords
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Wideband slot-coupled dielectric resonator-based filter

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Published in 2019 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2019.01.286

Abstract: Abstract A simple and novel slot-coupled dielectric resonator-based filter (DRF) with wideband performance is proposed, and the designed geometric parameters of the filter are discussed in detail. The proposed filter comprises a substrate, a microstrip… read more here.

Keywords: slot coupled; coupled dielectric; filter; wideband ... See more keywords
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Design of a dielectric resonator receive array at 7 Tesla using detunable ceramic resonators.

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Published in 2017 at "Journal of magnetic resonance"

DOI: 10.1016/j.jmr.2017.09.015

Abstract: Ceramic-based dielectric resonators can be used for high frequency magnetic resonance imaging and microscopy. When used as elements in a transmit array, the intrinsically low inter-element coupling allows flexibility in designing different geometric arrangements for… read more here.

Keywords: array; dielectric resonator; design dielectric; receive array ... See more keywords