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Investigação Sobre Uma Antena Miniaturizada Baseada Em Metassuperfície by Kumar, Vijay

Investigação Sobre Uma Antena Miniaturizada Baseada Em Metassuperfície

by Vijay Kumar , Galaba Sai Rajesh
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Book cover type: Paperback
  • ISBN13: 9786207894130
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Edicoes Nosso Conhecimento
  • Publisher Imprint: Edicoes Nosso Conhecimento
  • Publication Date:
  • Pages: 128
  • Original Price: GBP 51.0
  • Language: Portuguese
  • Edition: N/A
  • Item Weight: 200 grams
  • BISAC Subject(s): Electronics / General

A antena de micro-ondas é uma área de investigação sempre ativa devido à sua procura incessante nos sistemas de comunicação modernos. As antenas de microfita (MPAs) são bem conhecidas devido às suas vantagens, como o baixo custo de fabrico, o peso leve, o baixo volume e também suportam tanto a polarização linear como a circular. Por outro lado, as MPAs sofrem com a largura de banda estreita, ressonância de frequência única e tamanho grande. No entanto, devido ao avanço das tecnologias sofisticadas, os desenhos das antenas têm de ser mais compactos e a estrutura deve ser reduzida para se adaptar a áreas mais pequenas. Por conseguinte, há uma procura crescente de antenas miniaturizadas para comunicações robustas utilizando as bandas ISM (Industrial Scientific and Medical), WLAN (Wireless Local Area Network), Wi-MAX (Worldwide Interoperability for Microwave Access) para sistemas de radar sem fios e aéreos. Conceção e análise de células unitárias MNG e ENG MTM e extração de parâmetros constitutivos. Nesta tese, são também concebidas antenas multibanda utilizando RIS de camada única e de camada dupla. Foram concebidos diferentes MPAs novos utilizando superfícies de impedância reactiva (RIS) ou metassuportes baseados em ENG e MNG MTM recentemente formulados.

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