Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10071/13060
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Cruz, C. C. | - |
dc.contributor.author | Costa, J. R. | - |
dc.contributor.author | Fernandes, C. A. | - |
dc.contributor.author | Matos, S. | - |
dc.date.accessioned | 2017-04-20T12:00:22Z | - |
dc.date.available | 2017-04-20T12:00:22Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 1536-1225 | - |
dc.identifier.uri | http://hdl.handle.net/10071/13060 | - |
dc.description.abstract | A shaped double-shell dielectric lens is evaluated as a primary feed for a multibeam single-reflector system operating in the satellite uplink and downlink Ka-bands, complying with gain and edge-of-coverage (EoC) directivity requirements. An assembly of dual-band printed feeds is integrated at the base of a single lens, each feed producing a virtual focus far behind the lens base and coincident with the reflector focal arch. The used double-shell lens approach, instead of a single-material lens, allows an extra degree of freedom to accommodate an aberration mitigation condition. This primary feed system is proposed as a low-complexity solution to enable fitting more beams per solid angle than conventional single-feed-per-beam systems based on a cluster of focal-plane horns. A proof-of-concept lens prototype with 87mm diameter and 62 mm height, fed by a linear arrangement of five dual-band printed feeds, was fabricated and tested at the Ka-band. The lens measured radiation patterns were post-processed to evaluate the combined performance of the lens with an offset F/D = 1 reflector system designed for 45 dBi EoC directivity. It is shown that it duplicates the reflector aperture efficiency compared to horn-fed systems with same feed separation. | eng |
dc.language.iso | eng | - |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | - |
dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/125458/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147328/PT | - |
dc.rights | embargoedAccess | por |
dc.subject | Dual-band antenna | eng |
dc.subject | Multibeam antennas | eng |
dc.subject | Reflector antennas | eng |
dc.subject | Shaped double shell-lens antenna | eng |
dc.title | Focal-plane multibeam dual-band dielectric lens for ka-band | eng |
dc.type | article | - |
dc.event.date | 2018 | - |
dc.pagination | 432 - 436 | - |
dc.publicationstatus | Publicado | por |
dc.peerreviewed | yes | - |
dc.journal | IEEE Antennas and Wireless Propagation Letters | - |
dc.distribution | Internacional | por |
dc.volume | 16 | - |
degois.publication.firstPage | 432 | - |
degois.publication.lastPage | 436 | - |
degois.publication.title | Focal-plane multibeam dual-band dielectric lens for ka-band | eng |
dc.date.updated | 2019-03-21T17:27:58Z | - |
dc.description.version | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.doi | 10.1109/LAWP.2016.2582263 | - |
dc.subject.fos | Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática | por |
iscte.subject.ods | Indústria, inovação e infraestruturas | por |
iscte.subject.ods | Cidades e comunidades sustentáveis | por |
iscte.identifier.ciencia | https://ciencia.iscte-iul.pt/id/ci-pub-36719 | - |
iscte.alternateIdentifiers.wos | WOS:000398667900006 | - |
iscte.alternateIdentifiers.scopus | 2-s2.0-85017588786 | - |
Aparece nas coleções: | CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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AWPL_17a.pdf Restricted Access | Versão Editora | 309,98 kB | Adobe PDF | Ver/Abrir Request a copy |
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