Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz

Detalhes bibliográficos
Autor(a) principal: Gama,Adriana Medeiros
Data de Publicação: 2010
Outros Autores: Rezende,Mirabel Cerqueira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Aerospace Technology and Management (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462010000100059
Resumo: Abstract: The complex dielectric permittivity (e) and magnetic permeability (m) of Radar Absorbing Materials (RAM) based on metallic magnetic particles (carbonyl iron particles) embedded in a dielectric matrix (silicon rubber) have been studied in the frequency range of 2 to 18 GHz. The relative permeability and permittivity of carbonyl iron-silicon composites for various mass fractions are measured by the transmission/reflection method using a vector network analyzer. The concentration dependence of permittivity and permeability on the frequency is analyzed. In a general way, the results show that e´ parameter shows a more significant variation among the evaluated parameters (e", m", m'). The comparison of dielectric and magnetic loss tangents (e"/e" and m"/m', respectively) shows more clearly the variation of both parameters (e and m) according to the frequency. It is also observed that higher carbonyl iron content fractions favor both dielectric and magnetic loss tangents.
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spelling Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHzCarbonyl ironSiliconPermeabilityPermittivityRadar Absorbing Materials (RAM)Abstract: The complex dielectric permittivity (e) and magnetic permeability (m) of Radar Absorbing Materials (RAM) based on metallic magnetic particles (carbonyl iron particles) embedded in a dielectric matrix (silicon rubber) have been studied in the frequency range of 2 to 18 GHz. The relative permeability and permittivity of carbonyl iron-silicon composites for various mass fractions are measured by the transmission/reflection method using a vector network analyzer. The concentration dependence of permittivity and permeability on the frequency is analyzed. In a general way, the results show that e´ parameter shows a more significant variation among the evaluated parameters (e", m", m'). The comparison of dielectric and magnetic loss tangents (e"/e" and m"/m', respectively) shows more clearly the variation of both parameters (e and m) according to the frequency. It is also observed that higher carbonyl iron content fractions favor both dielectric and magnetic loss tangents.Departamento de Ciência e Tecnologia Aeroespacial2010-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462010000100059Journal of Aerospace Technology and Management v.2 n.1 2010reponame:Journal of Aerospace Technology and Management (Online)instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)instacron:DCTA10.5028/jatm.2010.02015962info:eu-repo/semantics/openAccessGama,Adriana MedeirosRezende,Mirabel Cerqueiraeng2017-05-29T00:00:00Zoai:scielo:S2175-91462010000100059Revistahttp://www.jatm.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||secretary@jatm.com.br2175-91461984-9648opendoar:2017-05-29T00:00Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)false
dc.title.none.fl_str_mv Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
title Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
spellingShingle Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
Gama,Adriana Medeiros
Carbonyl iron
Silicon
Permeability
Permittivity
Radar Absorbing Materials (RAM)
title_short Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
title_full Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
title_fullStr Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
title_full_unstemmed Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
title_sort Complex permeability and permittivity variation of carbonyl iron rubber in the frequency range of 2 to 18 GHz
author Gama,Adriana Medeiros
author_facet Gama,Adriana Medeiros
Rezende,Mirabel Cerqueira
author_role author
author2 Rezende,Mirabel Cerqueira
author2_role author
dc.contributor.author.fl_str_mv Gama,Adriana Medeiros
Rezende,Mirabel Cerqueira
dc.subject.por.fl_str_mv Carbonyl iron
Silicon
Permeability
Permittivity
Radar Absorbing Materials (RAM)
topic Carbonyl iron
Silicon
Permeability
Permittivity
Radar Absorbing Materials (RAM)
description Abstract: The complex dielectric permittivity (e) and magnetic permeability (m) of Radar Absorbing Materials (RAM) based on metallic magnetic particles (carbonyl iron particles) embedded in a dielectric matrix (silicon rubber) have been studied in the frequency range of 2 to 18 GHz. The relative permeability and permittivity of carbonyl iron-silicon composites for various mass fractions are measured by the transmission/reflection method using a vector network analyzer. The concentration dependence of permittivity and permeability on the frequency is analyzed. In a general way, the results show that e´ parameter shows a more significant variation among the evaluated parameters (e", m", m'). The comparison of dielectric and magnetic loss tangents (e"/e" and m"/m', respectively) shows more clearly the variation of both parameters (e and m) according to the frequency. It is also observed that higher carbonyl iron content fractions favor both dielectric and magnetic loss tangents.
publishDate 2010
dc.date.none.fl_str_mv 2010-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462010000100059
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462010000100059
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5028/jatm.2010.02015962
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Ciência e Tecnologia Aeroespacial
publisher.none.fl_str_mv Departamento de Ciência e Tecnologia Aeroespacial
dc.source.none.fl_str_mv Journal of Aerospace Technology and Management v.2 n.1 2010
reponame:Journal of Aerospace Technology and Management (Online)
instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
instacron:DCTA
instname_str Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
instacron_str DCTA
institution DCTA
reponame_str Journal of Aerospace Technology and Management (Online)
collection Journal of Aerospace Technology and Management (Online)
repository.name.fl_str_mv Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
repository.mail.fl_str_mv ||secretary@jatm.com.br
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