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Projeto de antena compacta de banda ultralarga
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ISBN10: 6208467225
ISBN13: 9786208467227
Publisher: Edicoes Nosso Conhecimento
Published: Sep 1 2025
Pages: 80
Weight: 0.26
Height: 0.19 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208467227
Publisher: Edicoes Nosso Conhecimento
Published: Sep 1 2025
Pages: 80
Weight: 0.26
Height: 0.19 Width: 6.00 Depth: 9.00
Language: Portuguese
A tecnologia de banda ultralarga (UWB) baseia-se nos novos conceitos de sinais de pulso muito curtos. Esta tecnologia é uma boa candidata para as redes da próxima geração (4G), mas requer uma nova abordagem ao projeto de antenas para alcançar as caracterÃsticas UWB. Este trabalho analisa o projeto de uma antena de banda ultralarga (UWB) com corte retangular alimentada por linha microstrip e apresenta simulações de antenas UWB em modo transitório utilizadas para verificar as melhorias nos parâmetros da antena. A antena foi projetada em um substrato FR4 com constante dielétrica ǫr = 4,4, tangente de perda (tan δ)=0,02. A antena foi otimizada para exibir caracterÃsticas UWB na faixa de frequência de 3,1 GHz a 12 GHz. O padrão de radiação desta antena é quase omnidirecional no plano H e bidirecional no plano E. O efeito de vários parâmetros de projeto no projeto também foi analisado usando o simulador CAD Feko 6.1 com MoM. Os resultados simulados estão em boa concordância com os padrões da FCC, mostrando VSWR
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