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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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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. |
format | Online Article Text |
id | pubmed-5948627 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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