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Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array

A novel feeding method for linear DRA arrays is presented, illuminating the use of the power divider, transitions, and launchers, and keeping uniform excitation to array elements. This results in a high-gain DRA array with low losses with a design that is simple, compact and inexpensive. The propose...

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Autores principales: Abdalmalak, Kerlos Atia, Althuwayb, Ayman Abdulhadi, Lee, Choon Sae, Botello, Gabriel Santamaría, Falcón-Gómez, Enderson, García-Castillo, Luis Emilio, García-Muñoz, Luis Enrique
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9031393/
https://www.ncbi.nlm.nih.gov/pubmed/35459074
http://dx.doi.org/10.3390/s22083089
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author Abdalmalak, Kerlos Atia
Althuwayb, Ayman Abdulhadi
Lee, Choon Sae
Botello, Gabriel Santamaría
Falcón-Gómez, Enderson
García-Castillo, Luis Emilio
García-Muñoz, Luis Enrique
author_facet Abdalmalak, Kerlos Atia
Althuwayb, Ayman Abdulhadi
Lee, Choon Sae
Botello, Gabriel Santamaría
Falcón-Gómez, Enderson
García-Castillo, Luis Emilio
García-Muñoz, Luis Enrique
author_sort Abdalmalak, Kerlos Atia
collection PubMed
description A novel feeding method for linear DRA arrays is presented, illuminating the use of the power divider, transitions, and launchers, and keeping uniform excitation to array elements. This results in a high-gain DRA array with low losses with a design that is simple, compact and inexpensive. The proposed feeding method is based on exciting standing waves using discrete metallic patches in a simple design procedure. Two arrays with two and four DRA elements are presented as a proof of concept, which provide high gains of 12 and [Formula: see text] , respectively, which are close to the theoretical limit based on array theory. The radiation efficiency for both arrays is about 93%, which is equal to the array element efficiency, confirming that the feeding method does not add losses as in the case of standard methods. To facilitate the fabrication process, the entire array structure is 3D-printed, which significantly decreases the complexity of fabrication and alignment. Compared to state-of-the-art feeding techniques, the proposed method provides higher gain and higher efficiency with a smaller electrical size.
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spelling pubmed-90313932022-04-23 Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array Abdalmalak, Kerlos Atia Althuwayb, Ayman Abdulhadi Lee, Choon Sae Botello, Gabriel Santamaría Falcón-Gómez, Enderson García-Castillo, Luis Emilio García-Muñoz, Luis Enrique Sensors (Basel) Communication A novel feeding method for linear DRA arrays is presented, illuminating the use of the power divider, transitions, and launchers, and keeping uniform excitation to array elements. This results in a high-gain DRA array with low losses with a design that is simple, compact and inexpensive. The proposed feeding method is based on exciting standing waves using discrete metallic patches in a simple design procedure. Two arrays with two and four DRA elements are presented as a proof of concept, which provide high gains of 12 and [Formula: see text] , respectively, which are close to the theoretical limit based on array theory. The radiation efficiency for both arrays is about 93%, which is equal to the array element efficiency, confirming that the feeding method does not add losses as in the case of standard methods. To facilitate the fabrication process, the entire array structure is 3D-printed, which significantly decreases the complexity of fabrication and alignment. Compared to state-of-the-art feeding techniques, the proposed method provides higher gain and higher efficiency with a smaller electrical size. MDPI 2022-04-18 /pmc/articles/PMC9031393/ /pubmed/35459074 http://dx.doi.org/10.3390/s22083089 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Abdalmalak, Kerlos Atia
Althuwayb, Ayman Abdulhadi
Lee, Choon Sae
Botello, Gabriel Santamaría
Falcón-Gómez, Enderson
García-Castillo, Luis Emilio
García-Muñoz, Luis Enrique
Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array
title Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array
title_full Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array
title_fullStr Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array
title_full_unstemmed Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array
title_short Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array
title_sort standing-wave feeding for high-gain linear dielectric resonator antenna (dra) array
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9031393/
https://www.ncbi.nlm.nih.gov/pubmed/35459074
http://dx.doi.org/10.3390/s22083089
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