Superfícies seletivas em frequência complementares com bandas de rejeição próximas para aplicação em WLAN e 5G
Complementary frequency selective surfaces (CFSS), are periodic structures based on the frequency selective surface (FSS). A CFSS consists of unit cells periodically arranged with patch and aperture elements, separated by a dielectric layer. This structure is less susceptible to polarization change...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/49649 |
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| Resumo: | Complementary frequency selective surfaces (CFSS), are periodic structures based on the frequency selective surface (FSS). A CFSS consists of unit cells periodically arranged with patch and aperture elements, separated by a dielectric layer. This structure is less susceptible to polarization change and has good angular stability due to its complementary nature. This work aims to design and fabricate a prototype CFSS for WLAN and 5G application with near resonant frequencies. Using computational modeling and simulation and parametric analysis, it was possible to determine the physical dimensions of the CFSS to build the prototype and obtain frequency response for the desired application. The experimental results proved that the constructed CFSS shows the expected characteristics, such as angular stability for up to 45º with respect to the angle of normal incidence, multi-band operation with close resonance frequencies, high frequency selectivity and polarization independence. It is concluded that, the prototype of CFSS constructed can be applied to solve the interference problems in both WLAN and 5G systems. |
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