Avaliação de desempenho de câmaras excitadas via linha de transmissão aplicáveis à compatibilidade eletromagnética. / Transmission line excited chamber performance evaluation applied to electromanetic compatibility.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This Thesis presents the proposition of a Transmission Line Excited Chamber configuration. This configuration is considered to be a potential solution for the constraints of reverberation chambers of nowadays. Among this constraints, e.g. the ones related to chamber operation at some MHz, is a physical restriction to implement in tests environments. Moreover the work volume and the canonical chamber excitation ways are also considered restrictions. In order to satisfy the chamber evaluation indexes of merit applicability, several transmission line sets are evaluated, including the details concerned to electronic exciting variation and load variation. The chamber performance analysis methodology is proposed in this work is based on analytical and numerical methods, and also experimental evaluations. Not only optimization algorithms and methods recommended by literature were used in order to reach the adopted indexes of merit but also procedures developed and adapted by the authors. To analyze the chamber capacity to reach all the electromagnetic compatibility test requirements applied to equipments and electric and electronic systems, several tests, were performed over one Transmission Line Excited Chamber prototype. The results obtained by numerical simulations and experimental evaluations are presented and compared.

ASSUNTO(S)

estocastic optmization eletromagnetismo electromagnetic compatibility eletromagnetism compatibilidade eletromagnética electric instrumentation and measuremen instrumentação e medidas elétricas

ACESSO AO ARTIGO

Documentos Relacionados