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Improvement of the Bandwith in Spaceborne Reflectarrays Based on a Optimization Procedure

dc.contributor.authorRodríguez Prado, Daniel 
dc.contributor.authorArrebola Baena, Manuel 
dc.contributor.authorRodríguez Pino, Marcos 
dc.contributor.authorGoussetis, George
dc.date.accessioned2021-02-05T10:32:07Z
dc.date.available2021-02-05T10:32:07Z
dc.date.issued2020-09
dc.identifier.urihttp://hdl.handle.net/10651/57768
dc.descriptionXXXV Simposium Nacional de la Unión Científica Internacional de Radio (URSI) (35º. Málaga. 2020)
dc.description.abstractDirect-to-home (DTH) applications usually require a radiation pattern with a given footprint on the surface of the Earth. They also impose stringent cross-polarization requirements in the form of crosspolar discrimination (XPD) or isolation (XPI) in a given bandwidth. This paper describes a wideband optimization procedure and performance results of a very large spaceborne reflectarray for DTH application in a 10% bandwidth. The procedure is divided into three stages to facilitate convergence towards a wideband performance. First, a initial narrowband design is obtained. Then, a broadband optimization including XPD requirements is carried out with a limited number of DoF. Finally, more DoF are included in the last stage to obtain a wideband reflectarray with improved cross-polarization performance. An improvement of 4.8 dB is achieved in the cross-polarization performance for both XPD and XPI in a 10% bandwidth, while ensuring that the copolar pattern complies with the specifications in the whole band.spa
dc.description.sponsorshipThis work was supported in part by the Ministerio de Ciencia, Innovación y Universidades under the project TEC2017-86619-R (ARTEINE); by the Ministerio de Economía, Industria y Competitividad under the project TEC2016-75103-C2-1-R (MYRADA); by the Gobierno del Principado de Asturias/FEDER under the project GRUPIN-IDI/2018/000191; and by Ministerio de Educación, Cultura y Deporte/Programa de Movilidad “Salvador de Madariaga” (Ref. PRX18/00424).spa
dc.format.extent1-4spa
dc.language.isoengspa
dc.relation.ispartofXXXV Simposium Nacional de la Unión Científica Internacional de Radio (URSI)spa
dc.rightsAtribución 4.0 Internacional*
dc.rights©
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectreflectarraysspa
dc.subjectoptimizationspa
dc.subjectspace communicationsspa
dc.subjectshaped-beamspa
dc.subjectgeneralized intersection approachspa
dc.titleImprovement of the Bandwith in Spaceborne Reflectarrays Based on a Optimization Procedurespa
dc.typeinfo:eu-repo/semantics/conferenceObjectspa
dc.type.dcmitextspa
dc.relation.projectIDTEC2017-86619-Rspa
dc.relation.projectIDTEC2016-75103-C2-1-Rspa
dc.relation.projectIDGRUPIN-IDI/2018/000191spa
dc.relation.projectIDPRX18/00424spa
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessspa


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