Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: Teixeira, Poliane Aires lattes
Orientador(a): Ribeiro, Jos? Ant?nio Justino lattes
Banca de defesa: Ribeiro, Jos? Ant?nio Justino lattes, Mej?a, Felipe Beltr?n lattes, Portelinha, Francisco Martins lattes
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Instituto Nacional de Telecomunica??es
Programa de Pós-Graduação: Mestrado em Engenharia de Telecomunica??es
Departamento: Instituto Nacional de Telecomunica??es
País: Brasil
Palavras-chave em Português:
Antenas impressas; gravata borboleta; transformadores de quarto de onda; tri?ngulo de Sierpinski
Área do conhecimento CNPq:
Engenharia - Telecomunica??es
Link de acesso: http://tede.inatel.br:8080/tede/handle/tede/17
Resumo: This work presents a study on microstrip antennas in bowtie shape. It was developed the traditional model of bowtie with the purpose of verify its operating behavior according of the reflection coefficient. Results showed that this geometry operates with multiple resonance frequencies and narrow band around each. To expand the range of operation, it was used the fractal geometry of Sierpinski triangle, together with other modifications to the radiator element, in the feed system and the ground plane. For the traditional model was used feed by coaxial probe, at a point where was obtained better impedance matching. For models developed from the Sierpinski triangle, was employed the microstrip line with a quarter-wave transformers based on binomial sequence and Tschebyscheff polynomial. The designs were developed in the FR4 substrate searching acceptable performance in the point of view of return loss in broad band. The results were consistent with the demands of different radiocommunications systems in the microwave range.
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spelling Ribeiro, Jos? Ant?nio Justino012.620.256-72http://lattes.cnpq.br/9987344139958522Ribeiro, Jos? Ant?nio Justino012.620.256-72http://lattes.cnpq.br/9987344139958522Mej?a, Felipe Beltr?n235.092.198-05http://lattes.cnpq.br/8371603251897972Portelinha, Francisco Martinshttp://lattes.cnpq.br/2508953043452613087.157.276-10http://lattes.cnpq.br/4964865294025484Teixeira, Poliane Aires2016-06-20T20:46:13Z2015-03-10Teixeira, Poliane Aires. Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa. 2015. [63]. Disserta??o( Programa 1) - Instituto Nacional de Telecomunicacoes, [Santa Rita do Sapuca?] .http://tede.inatel.br:8080/tede/handle/tede/17This work presents a study on microstrip antennas in bowtie shape. It was developed the traditional model of bowtie with the purpose of verify its operating behavior according of the reflection coefficient. Results showed that this geometry operates with multiple resonance frequencies and narrow band around each. To expand the range of operation, it was used the fractal geometry of Sierpinski triangle, together with other modifications to the radiator element, in the feed system and the ground plane. For the traditional model was used feed by coaxial probe, at a point where was obtained better impedance matching. For models developed from the Sierpinski triangle, was employed the microstrip line with a quarter-wave transformers based on binomial sequence and Tschebyscheff polynomial. The designs were developed in the FR4 substrate searching acceptable performance in the point of view of return loss in broad band. The results were consistent with the demands of different radiocommunications systems in the microwave range.Este trabalho apresenta um estudo sobre antenas impressas no formato gravata borboleta. Desenvolveu-se o modelo tradicional da gravata borboleta com o intuito de verificar seu comportamento de opera??o em fun??o do coeficiente de reflex?o. Resultados demonstraram que esta geometria opera com m?ltiplas freq??ncias de resson?ncia e faixa estreita em torno de cada uma. Para ampliar a faixa de opera??o, recorreu-se ? geometria fractal do tri?ngulo de Sierpinski, juntamente com outras modifica??es no elemento irradiador, no sistema de alimenta??o e no plano de terra. Para o modelo tradicional utilizou-se alimenta??o por sonda coaxial, em um ponto onde se obteve melhor casamento de imped?ncia. Para os modelos desenvolvidos a partir do tri?ngulo de Sierpinski, empregou-se a linha de microfita com transformadores de quarto de onda baseados na seq??ncia binomial e nos polin?mios de Tschebyscheff. Os projetos foram desenvolvidos no substrato FR4 procurando-se desempenhos aceit?veis do ponto de vista da perda de retorno em faixa larga. Os resultados foram condizentes com as demandas de diferentes sistemas de radiocomunica??es na faixa de microondas.Submitted by Tede Dspace (tede@inatel.br) on 2016-06-20T20:46:13Z No. of bitstreams: 2 license_rdf: 20592 bytes, checksum: 0c9b9c579af4cbbcf785ca803bd18d4b (MD5) Disserta??o V.Final Poliane Aires.pdf: 1728274 bytes, checksum: 7b0f17c88a720e3e38ae7774e5a369b9 (MD5)Made available in DSpace on 2016-06-20T20:46:13Z (GMT). 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dc.title.por.fl_str_mv Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
title Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
spellingShingle Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
Teixeira, Poliane Aires
Antenas impressas; gravata borboleta; transformadores de quarto de onda; tri?ngulo de Sierpinski
Engenharia - Telecomunica??es
title_short Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
title_full Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
title_fullStr Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
title_full_unstemmed Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
title_sort Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa
author Teixeira, Poliane Aires
author_facet Teixeira, Poliane Aires
author_role author
dc.contributor.advisor1.fl_str_mv Ribeiro, Jos? Ant?nio Justino
dc.contributor.advisor1ID.fl_str_mv 012.620.256-72
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/9987344139958522
dc.contributor.referee1.fl_str_mv Ribeiro, Jos? Ant?nio Justino
dc.contributor.referee1ID.fl_str_mv 012.620.256-72
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/9987344139958522
dc.contributor.referee2.fl_str_mv Mej?a, Felipe Beltr?n
dc.contributor.referee2ID.fl_str_mv 235.092.198-05
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/8371603251897972
dc.contributor.referee3.fl_str_mv Portelinha, Francisco Martins
dc.contributor.referee3Lattes.fl_str_mv http://lattes.cnpq.br/2508953043452613
dc.contributor.authorID.fl_str_mv 087.157.276-10
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/4964865294025484
dc.contributor.author.fl_str_mv Teixeira, Poliane Aires
contributor_str_mv Ribeiro, Jos? Ant?nio Justino
Ribeiro, Jos? Ant?nio Justino
Mej?a, Felipe Beltr?n
Portelinha, Francisco Martins
dc.subject.por.fl_str_mv Antenas impressas; gravata borboleta; transformadores de quarto de onda; tri?ngulo de Sierpinski
topic Antenas impressas; gravata borboleta; transformadores de quarto de onda; tri?ngulo de Sierpinski
Engenharia - Telecomunica??es
dc.subject.cnpq.fl_str_mv Engenharia - Telecomunica??es
description This work presents a study on microstrip antennas in bowtie shape. It was developed the traditional model of bowtie with the purpose of verify its operating behavior according of the reflection coefficient. Results showed that this geometry operates with multiple resonance frequencies and narrow band around each. To expand the range of operation, it was used the fractal geometry of Sierpinski triangle, together with other modifications to the radiator element, in the feed system and the ground plane. For the traditional model was used feed by coaxial probe, at a point where was obtained better impedance matching. For models developed from the Sierpinski triangle, was employed the microstrip line with a quarter-wave transformers based on binomial sequence and Tschebyscheff polynomial. The designs were developed in the FR4 substrate searching acceptable performance in the point of view of return loss in broad band. The results were consistent with the demands of different radiocommunications systems in the microwave range.
publishDate 2015
dc.date.issued.fl_str_mv 2015-03-10
dc.date.accessioned.fl_str_mv 2016-06-20T20:46:13Z
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dc.identifier.citation.fl_str_mv Teixeira, Poliane Aires. Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa. 2015. [63]. Disserta??o( Programa 1) - Instituto Nacional de Telecomunicacoes, [Santa Rita do Sapuca?] .
dc.identifier.uri.fl_str_mv http://tede.inatel.br:8080/tede/handle/tede/17
identifier_str_mv Teixeira, Poliane Aires. Antena gravata borboleta em geometria fractal para m?ltiplas frequ?ncias e grande largura de faixa. 2015. [63]. Disserta??o( Programa 1) - Instituto Nacional de Telecomunicacoes, [Santa Rita do Sapuca?] .
url http://tede.inatel.br:8080/tede/handle/tede/17
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dc.publisher.department.fl_str_mv Instituto Nacional de Telecomunica??es
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