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Sociedade Brasileira de Telecomunicações

Comparação e Criação de Diagramas de Antena Phased Array Linear Utilizando Três Métodos Diferentes de Otimização

Phased array antennas have been widely employed in both civilian and military applications in recent decades. Phase and amplitude variations for each active antenna element allow to control beam steering eletronically. In addition, antenna pattern with constraints on power peak, sidelobes levels, mainlobe 3dB- width and nulls in given directions can be generated. This paper focuses on a comparison between the results obtained when three distinct optimization methods are applied in order to obtain a given radiation pattern. Mathematical analysis and simulation results are taken into consideration to evaluate and to compare these methods.

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