Projeto de antenas multifuncionais integradas com superfícies seletivas em frequência
This work aims to attribute the use of Frequency Selective Surfaces (FSS) together with planar antenna arrays, proposing ways to grant better results in terms of directivity, gain and bandwidth. In addition to that study it will also be made a study about the characteristics of the arrays of microst...
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| Formato: | Dissertação |
| Idioma: | por |
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Brasil
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/21974 |
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| Resumo: | This work aims to attribute the use of Frequency Selective Surfaces (FSS) together with planar antenna arrays, proposing ways to grant better results in terms of directivity, gain and bandwidth. In addition to that study it will also be made a study about the characteristics of the arrays of microstrip antennas, mutual coupling between the elements of the array, ground plane trunking, and its benefits for the for the radiation characteristics of the antenna. For the accomplishment of that study, some results for microstrip antennas and microstrip antenna arrays with two elements were reproduced, having the unusual ground plane trunking study in addition to that. As soon as its effects were verified, the optimal parameters for the radiation characteristics of the antenna were selected and applied, so the new geometry of FSS could start being proposed on that antenna. That initial study have been made with only simulations using a commercial software and this was followed by the fabrication of prototypes of the best results of the simulations. The prototypes were measured and their results were tested and verified to be useful for the real applications, by comparison with the simulated results. |
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