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Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †

This article demonstrated an accurate analysis technique for dual-reflectarray antennas that take into account the angle of incidence of the impinging electric field on the main reflectarray cells. The reflected field on the sub and the main reflectarray surfaces is computed using Method of Moments...

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Detalles Bibliográficos
Autores principales: Tienda, Carolina, Encinar, Jose A., Barba, Mariano, Arrebola, Manuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5948627/
https://www.ncbi.nlm.nih.gov/pubmed/29621155
http://dx.doi.org/10.3390/s18041100
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author Tienda, Carolina
Encinar, Jose A.
Barba, Mariano
Arrebola, Manuel
author_facet Tienda, Carolina
Encinar, Jose A.
Barba, Mariano
Arrebola, Manuel
author_sort Tienda, Carolina
collection PubMed
description This article demonstrated an accurate analysis technique for dual-reflectarray antennas that take into account the angle of incidence of the impinging electric field on the main reflectarray cells. The reflected field on the sub and the main reflectarray surfaces is computed using Method of Moments in the spectral domain and assuming local periodicity. The sub-reflectarray is divided into groups of elements and the field radiated by each group is used to compute the incident and reflected field on the main reflectarray cells. A 50-cm demonstrator in Ku-band that provides European coverage has been designed, manufactured and tested to validate the analysis technique. The measured radiation patterns match the simulations and they fulfill the coverage requirements, achieving a cross-polar discrimination better than 25 dB in the frequency range: 12.975–14.25 GHz.
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spelling pubmed-59486272018-05-17 Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics † Tienda, Carolina Encinar, Jose A. Barba, Mariano Arrebola, Manuel Sensors (Basel) Article This article demonstrated an accurate analysis technique for dual-reflectarray antennas that take into account the angle of incidence of the impinging electric field on the main reflectarray cells. The reflected field on the sub and the main reflectarray surfaces is computed using Method of Moments in the spectral domain and assuming local periodicity. The sub-reflectarray is divided into groups of elements and the field radiated by each group is used to compute the incident and reflected field on the main reflectarray cells. A 50-cm demonstrator in Ku-band that provides European coverage has been designed, manufactured and tested to validate the analysis technique. The measured radiation patterns match the simulations and they fulfill the coverage requirements, achieving a cross-polar discrimination better than 25 dB in the frequency range: 12.975–14.25 GHz. MDPI 2018-04-05 /pmc/articles/PMC5948627/ /pubmed/29621155 http://dx.doi.org/10.3390/s18041100 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tienda, Carolina
Encinar, Jose A.
Barba, Mariano
Arrebola, Manuel
Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †
title Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †
title_full Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †
title_fullStr Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †
title_full_unstemmed Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †
title_short Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics †
title_sort dual-polarization ku-band compact spaceborne antenna based on dual-reflectarray optics †
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5948627/
https://www.ncbi.nlm.nih.gov/pubmed/29621155
http://dx.doi.org/10.3390/s18041100
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