Interface de RF para radares de feixe cónico de banda C
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Interface de RF para radares de feixe cónico de banda C

Interface de RF para radares de feixe cónico de banda C


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About the Book

O meu tema de investigação é a conceção de um sofisticado front end de radar de feixe de varrimento que funcione na banda C (4-8 GHz) com uma frequência central de 5,8 GHz. O front end será tal que possa orientar o seu feixe principal em espiral cónica. O hardware será composto por dois módulos. O primeiro módulo é uma antena de matriz planar 4*4 cujo padrão está de acordo com as exigências dos radares (ou seja, feixe cónico e nível de lóbulo lateral inferior a -15dB). O segundo módulo é uma rede de mudança de fase constituída por acopladores híbridos e díodos varactor. Neste projeto, serão necessários conhecimentos de teoria das antenas, micro-ondas e eletrónica. O objetivo final deste projeto é desenvolver um conjunto de antenas planas com capacidade de varrimento de feixe, o que melhorará a nossa compreensão das antenas e dos sistemas de radar. Os produtos finais serão um conjunto de antenas planas e uma rede de direção de feixe. No passado, foram projectados radares a 2,4 GHz, mas o seu padrão de feixe não estava de acordo com os sistemas de radar práticos. Os materiais utilizados serão o substrato FR4, os díodos de pinos e os díodos varactor e as ferramentas de software utilizadas serão o Ansoft HFSS, o ADS2009 e o AutoCAD.


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Product Details
  • ISBN-13: 9786203900927
  • Publisher: International Book Market Service Ltd
  • Publisher Imprint: International Book Market Service Ltd
  • Height: 229 mm
  • No of Pages: 60
  • Returnable: N
  • Weight: 145 gr
  • ISBN-10: 6203900923
  • Publisher Date: 22 Apr 2025
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Spine Width: 4 mm
  • Width: 152 mm


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