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Doctoral Thesis
DOI
https://doi.org/10.11606/T.3.2005.tde-25072005-081712
Document
Author
Full name
Marcelo Bender Perotoni
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2005
Supervisor
Committee
Consonni, Denise (President)
Artuzi Junior, Wilson Arnaldo
Kaufmann, Pierre
Kretly, Luiz Carlos
Pinto, Jose Kleber da Cunha
Title in Portuguese
Projeto e desenvolvimento de lentes discretas.
Keywords in Portuguese
antenas
microondas
quasi-ótica
redes de antenas
Abstract in Portuguese
O presente trabalho trata do estudo, projeto, desenvolvimento, construção e medida de lentes discretas planares (DLAs). Estes dispositivos atuam como sistemas irradiantes, especialmente com características multi-feixes. A construção destas lentes utiliza tecnologias compatíveis com a fabricação de circuitos impressos, com alguns detalhes que são característicos da área de antenas e circuitos planares. O estudo aborda as equações de projeto e considerações gerais relativas ao atendimento de especificações técnicas preliminares. Foram desenvolvidas duas lentes discretas, uma na frequência de 8GHz (banda X) e outra na frequência de 40GHz (banda Ka- faixa de ondas milimétricas). São apresentados os resultados de medidas destas duas lentes, que comprovam a possibilidade de uso em aplicações multi-feixes, bem como seu efeito de foco, análogo ao observado em lentes óticas comuns.
Title in English
Design and development of discrete lenses.
Keywords in English
antenna arrays
antennas
microwaves
quasi-optics
Abstract in English
The object of this work is the study, design, development, fabrication and measurement of discrete lens arrays (DLAs). These devices act as radiant systems, especially with multi-beam characteristics. Their construction follows the same procedures and techniques normally found in printed circuit fabrication, with some further details that are pertinent to the antenna and planar circuit field. This study contains the design equations and general remarks as to fulfill preliminary technical specifications. Two real designs were developed, one in the X-band (8GHz) and another in the millimeter range, Ka band (40GHz). Their respective measurement results are presented, which proved their possible application in multi-beam systems, as well as their focusing effect, which is analogous to that observed in common optical lenses.
 
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tese-marcelo.pdf (2.86 Mbytes)
Publishing Date
2005-08-08
 
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