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Wideband Reflectarrays with Improved Performances for Space Applications

dc.contributor.authorRodríguez Prado, Daniel 
dc.contributor.authorArrebola Baena, Manuel 
dc.contributor.authorRodríguez Pino, Marcos
dc.descriptionIberian Meeting on Computational Electromagnetics (13th. 2019. Potes, Cantabria)
dc.description.abstractThis work presents the design and optimization of two very large reflectarrays with improved polarization purity for Direct Broadcast Satellite missions in dual-linear polarization. The first antenna is a one-meter contoured-beam reflectarray working in a 15% frequency band providing European coverage. The second reflectarray has a diameter of 1.1 meters and provides coverage for South America in transmit and receive bands. In both cases, the design approach is as follows. First, a layout is obtained at central frequency. Then, using a limited number of degrees of freedom (DoF), a copolar only optimization is carried out in the whole frequency band. Finally, increasing the number of DoF, cross-polarization requirements are also included in the optimization. For the reflectarray with European coverage, a minimum copolar gain of 28dBi is obtained inn the whole band, with XPI values higher than 31.5dB. On the other hand, the reflectarray with South American coverage complies with all copolar and cross-polarization requirements with a loss budget of at least 0.49 dB in both receive and transmit
dc.description.sponsorshipThis work was supported in part by the Ministerio de Ciencia, Innovación y Universidades under project TEC2017-86619-R (ARTEINE); by the Ministerio de Economía, Industria y Competitividad under project TEC2016-75103-C2-1-R (MYRADA); by the Gobierno del Principado de Asturias/FEDER under Project GRUPIN-IDI/2018/000191; by the Gobierno del Principado de Asturias through Programa “Clarín” de Ayudas Postdoctorales / Marie Curie-Cofund under project ACA17-09; by Ministerio de Educación, Cultura y Deporte / Programa de Movilidad “Salvador de Madariaga” (Ref. PRX18/00424).spa
dc.relation.ispartof13th Iberian Meeting on Computational Electromagnetics (EIEC)spa
dc.rights© The author 2019
dc.rightsCC Reconocimiento - No Comercial - Sin Obra Derivada 4.0 Internacional
dc.subjectWideband reflectarrayspa
dc.subjecttransmit-receive antennaspa
dc.subjectshaped beamspa
dc.subjectspace missionspa
dc.titleWideband Reflectarrays with Improved Performances for Space Applicationsspa

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