Análise teórica e experimental de superfícies seletivas de freqüência e suas aplicações em antenas planares

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This work presents a theoretical and numerical analysis of structures using frequency selective surfaces applied on patch antennas. The FDTD method is used to determine the time domain reflected fields. Applications of frequency selective surfaces and patch antennas cover a wide area of telecommunications, especially mobile communications, filters and WB antennas. scattering parameters are obteained from Fourier Transformer of transmited and reflected fields in time domain. The PML are used as absorbing boundary condition, allowing the determination of the fields with a small interference of reflections from discretized limit space. Rectangular patches are considered on dielectric layer and fed by microstrip line. Frequency selective surfaces with periodic and quasi-periodic structures are analyzed on both sides of antenna. A literature review of the use of frequency selective surfaces in patch antennas are also performed. Numerical results are also compared with measured results for return loss of analyzed structures. It is also presented suggestions of continuity to this work

ASSUNTO(S)

fss frequency selective surfaces ebg patch antennas engenharia eletrica simulação eletromagnética fdtd pml electromagnetic simulation pml antenas patch fdtd ebg

ACESSO AO ARTIGO

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