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3D-printed dual-reflector antenna with self-supported dielectric subreflector

dc.contributor.authorRebollo, Alejandro
dc.contributor.authorFernández Vaquero, Álvaro 
dc.contributor.authorArrebola Baena, Manuel 
dc.contributor.authorRodríguez Pino, Marcos
dc.identifier.citationIEEE Access, 8, p. 209091-209100 (2020): doi: 10.1109/ACCESS.2020.3038739
dc.description.abstractA dual-reflector antenna with a self-supported subreflector is proposed. The supporting structure is made of dielectric material and it is part of the feeding of the antenna, which is based onCassegrain optics and works at X-band. The feeding subsystem includes the primary feed, subreflector supporting structure and subreflector surface in a single dielectric piece, resulting in a compact, lightand low-cost solution. First, the subreflector and its feeding subsystem, based on a Dielectric Rectangular Waveguide (DRW) along with a hyperboloid, are described, and the phase center of the DRW and the antenna optics are defined. Then, two effective techniques to mitigate the refraction caused by the dielectric were proposed. Finally, the design was validated through the fabrication of a Cassegrain antenna using a 3Dprinting technique. Measurements and simulations show a very good agreement and an antenna of 26 dBi of directivity with overall very good performances is obtained, validating both the proposed subreflector and the design
dc.description.sponsorshipThis work was supported in part by the Ministerio de Ciencia, Innovación y Universidades (ARTEINE) under Project TEC2017-86619-R, in part by the European Space Agency under Contract ESTEC/AO/1-7064/12/NL/MH, and in part by the Gobierno del Principado de Asturias/FEDER under Project GRUPIN-IDI/2018/
dc.format.extentp. 209091-209100spa
dc.relation.ispartofIEEE Access, 8spa
dc.rightsCC Reconocimiento 4.0 Internacional
dc.rights© 2020 los autores
dc.subjectreflector antennaspa
dc.subjectdual-reflector antennaspa
dc.subject3D printed antennasspa
dc.subjectaperture antennasspa
dc.subjectCassegrain opticsspa
dc.title3D-printed dual-reflector antenna with self-supported dielectric subreflectorspa
dc.typejournal articlespa
dc.rights.accessRightsopen accessspa

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