Aplication of unscented transformed (ut) for design filters microwave / Aplicação da transformada de incerteza (ut) para projeto de filtros de microondas

AUTOR(ES)
DATA DE PUBLICAÇÃO

2010

RESUMO

The manufacture of complex filters and their tests depend on electromagnetic simulation for validation and correct analysis. However, in the filter assembly, the fabrication process introduces new sources of uncertainty that are difficult to model with the electromagnetic simulator. The result may be significant differences between the simulated responses and measures, which may result in increased costs to the finished filter. The modeling of uncertainty in the manufacturing process has the potential to lead to a better design in short cycles. The uncertainty is usually modeled using random variables. In this representation, rather than a deterministic analysis of the filter, it is best to perform a statistical study of the problem. This work presents a technique for modeling the effects of uncertainty in the manufacturing process in electromagnetic simulations of microwave devices. The procedure combines the Unscented Transform (UT) with EM simulations. The use of the UT allows efficient use of computing resources for the characterization of random variables. The technique is validated with the modeling of fault tolerance of the assembly of pseudo-elliptic filters, and dual-mode filters with stubs, all of these mounted on microstrip technology for the response of the electromagnetic simulation.

ASSUNTO(S)

software de simulação método de modelage monte carlo análise de tolerância irie micro filters telecomunicacoes filtros micro írie method of monte carlo modeling, simulation software, tolerance analysis

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