CT - DCO - Departamento de Engenharia de Comunicações

URI Permanente desta comunidadehttps://repositorio.ufrn.br/handle/123456789/29842

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Multiband frequency selective surfaces with a modified multifractal cantor geometry
(FapUNIFESP (SciELO), 2014-12-28) Braz, Erico Cadineli; Campos, Antonio Luiz Pereira de Siqueira
Self-affine property of a modified multifractal Cantor geometry is exploited to design frequency selective surfaces (FSS) with multiband response. The main advantage of the proposed structure is to design multiband FSS with multiple frequency ratios between the adjacent bands and easily-built structures. In addition, the proposed structure increases the degree of freedom in design of multiband FSS response according to the number of fractal iterations. The validation of the proposed structure was initially verified through simulations in Ansoft Designer 3.5 and then a prototype was built with a validation purpose
A New multifractal geometry for design of frequency selective surfaces with dual band response
(Applied Computational Electromagnetics Society Journal, 2015-07) Braz, Erico Cadineli; Campos, Antonio Luiz Pereira de Siqueira
In this paper, we proposed a new multifractal geometry for design of frequency selective surfaces (FSS) with dual band response. The proposed new geometry is called Ericampos. The main advantage of the proposed geometry is to design dual band FSS and makes it flexible in terms of controlling resonance and bandwidth. In addition, the proposed structure is easy to implement. The validation of the proposed structure was initially verified through simulations in a commercial software and then the structure was built and experimental results were obtained. A good agreement between numerical and experimental results is observed. The structure shows angular stability and polarization independence

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