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Authors
Advisor(s)
Abstract(s)
O estudo e desenvolvimento de antenas é um tópico muito discutido atualmente.
Esse desenvolvimento faz-se, não só mas também, seguindo as tendências do
mercado de equipamento eletrónico de consumo, no qual surgem produtos para
uso pessoal, como por exemplo os smartphones, smartwatches e outros gadgets que
fazem uso de comunicação sem-fios. Nas varias características que definem estes
produtos, o seu tamanho reduzido, a elevada eficiência energética e a qualidade
de comunicação são determinantes para a sua aquisição. Estas características são
muitas vezes definidas pelas tecnologias do canal radio, do qual faz parte a antena.
Este trabalho foca-se no estudo de antenas impressas, mais propriamente no monopolo,
sendo estas adequadas para terminais moveis. São desenvolvidas duas
antenas múltipla banda para aplicações Wi-Fi (2.5GHz e 5GHz), uma com geometria
circular e outra com geometria triangular. Os objetivos da dissertação
passam por demonstrar a projeção de uma antena simples com uma única banda,
a transformação da antena para múltipla banda e comparação entre geometrias
diferentes.
As antenas projetadas com o software Computer Simulation Technology (CST)
Studio Suite, são posteriormente construídas e analisadas no Instituto de Telecomunicações
de Aveiro.
The research and development of antennas is a very discussed topic nowadays. This development is made, not only but also, by following the tendencies of the market of consumer electronic equipment, in which products for personal use, such as smart-phones, smart-watches or any other gadget that makes use of wireless communication. In the many characteristics that define this products, their small footprint, higher energy efficiency and communication quality are determinants for its adoption. These characteristics are often defined by technologies and techniques of the radio channel, on which the antenna is part. This work is focused on the research of printed antennas, more properly the monopole type, being those suitable for mobile terminals. Two multiband antennas for Wi-Fi (2.5GHz and 5GHz) applications are developed, one with circular geometry and other with triangular geometry. The main objectives of this master thesis pass through demonstrate the projection of a simple antenna with single band, its transformation to a multiband antenna and the comparation of different geometries. The antennas are projected with the software Computer Simulation Technology (CST) Studio Suite, are then built and analysed at Telecommunications Institute of Aveiro.
The research and development of antennas is a very discussed topic nowadays. This development is made, not only but also, by following the tendencies of the market of consumer electronic equipment, in which products for personal use, such as smart-phones, smart-watches or any other gadget that makes use of wireless communication. In the many characteristics that define this products, their small footprint, higher energy efficiency and communication quality are determinants for its adoption. These characteristics are often defined by technologies and techniques of the radio channel, on which the antenna is part. This work is focused on the research of printed antennas, more properly the monopole type, being those suitable for mobile terminals. Two multiband antennas for Wi-Fi (2.5GHz and 5GHz) applications are developed, one with circular geometry and other with triangular geometry. The main objectives of this master thesis pass through demonstrate the projection of a simple antenna with single band, its transformation to a multiband antenna and the comparation of different geometries. The antennas are projected with the software Computer Simulation Technology (CST) Studio Suite, are then built and analysed at Telecommunications Institute of Aveiro.
Description
Dissertação para obtenção do grau de mestre em Engenharia de Eletrónica e Telecomunicações
Keywords
Antena impressa Printed antenna Monopolo impresso Printed monopole Múltipla banda Multiband
Citation
CASCALHO, Nuno Filipe Caim - Antenas de dupla banda para Wi-Fi. Lisboa: Instituto Superior de Engenharia de Lisboa, 2018. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa