Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors
An overview about some of the recent Spanish developments on active reflectors is presented. In the first part, a novel beamsteering active reflectarray is deeply studied. It is based on implementing in each elementary radiator an IQ modulator structure, in which amplitude and phase control of the s...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2009/653952 |
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| _version_ | 1832559498860953600 |
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| author | Lorena Cabria José Ángel García Julio Gutiérrez-Ríos Antonio Tazón Juan Vassal'lo |
| author_facet | Lorena Cabria José Ángel García Julio Gutiérrez-Ríos Antonio Tazón Juan Vassal'lo |
| author_sort | Lorena Cabria |
| collection | DOAJ |
| description | An overview about some of the recent Spanish developments on active reflectors is presented. In the first part, a novel beamsteering active reflectarray is deeply studied. It is based on implementing in each elementary radiator an IQ modulator structure, in which amplitude and phase control of the scattered field is achieved. Finally, a special effort is made in offering solutions to overcome the active antenna integration problems. In the second part, the active concept is firstly extended to Fresnel reflectors. Thanks to the development of a proper simulator, this special structure can be easily analysed. This simulator allows the study of performance of this kind of reflectors and, applying evolutionary algorithms, to find optimal configurations of reflector in accordance with the given specifications for the conformal radiation pattern. |
| format | Article |
| id | doaj-art-8b0707f1aec04192aa52f358bf40e3f3 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-8b0707f1aec04192aa52f358bf40e3f32025-02-03T01:29:59ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772009-01-01200910.1155/2009/653952653952Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel ReflectorsLorena Cabria0José Ángel García1Julio Gutiérrez-Ríos2Antonio Tazón3Juan Vassal'lo4Departamento de Ingeniería de Comunicaciones, Universidad de Cantabria, Avenida los Castros s/n, 39005 Santander, SpainDepartamento de Ingeniería de Comunicaciones, Universidad de Cantabria, Avenida los Castros s/n, 39005 Santander, SpainDepartamento de Tecnología Fotónica, Universidad Politécnica de Madrid, Campus Montegancedo, 28660 Boadilla del Monte Madrid, SpainDepartamento de Ingeniería de Comunicaciones, Universidad de Cantabria, Avenida los Castros s/n, 39005 Santander, SpainInstituto de Física Aplicada, Consejo Superior de Investigaciones Científicas, Serrano 144, 28006 Madrid, SpainAn overview about some of the recent Spanish developments on active reflectors is presented. In the first part, a novel beamsteering active reflectarray is deeply studied. It is based on implementing in each elementary radiator an IQ modulator structure, in which amplitude and phase control of the scattered field is achieved. Finally, a special effort is made in offering solutions to overcome the active antenna integration problems. In the second part, the active concept is firstly extended to Fresnel reflectors. Thanks to the development of a proper simulator, this special structure can be easily analysed. This simulator allows the study of performance of this kind of reflectors and, applying evolutionary algorithms, to find optimal configurations of reflector in accordance with the given specifications for the conformal radiation pattern.http://dx.doi.org/10.1155/2009/653952 |
| spellingShingle | Lorena Cabria José Ángel García Julio Gutiérrez-Ríos Antonio Tazón Juan Vassal'lo Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors International Journal of Antennas and Propagation |
| title | Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors |
| title_full | Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors |
| title_fullStr | Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors |
| title_full_unstemmed | Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors |
| title_short | Active Reflectors: Possible Solutions Based on Reflectarrays and Fresnel Reflectors |
| title_sort | active reflectors possible solutions based on reflectarrays and fresnel reflectors |
| url | http://dx.doi.org/10.1155/2009/653952 |
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