Análise do aquecimento por microondas em uma cavidade monomodo utilizando uma técnica semi-analítica

• Ano de defesa: 2007
• Autor(a) principal: Diogo Batista de Oliveira
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Engenharia Elétrica; Engenharia elétrica
• Link de acesso: http://hdl.handle.net/1843/BUOS-8CBFJV

In this work the electromagnetic and the thermal problems inside a singlemode cavity are solved. A sample of ceramic material is heated inside the cavity. To solve the electromagnetic problem a semi-analytical method is used. It is based on the scattering matrix theory and a numerical technique. This method eliminates the convergence problems presented by the Finite Element Method (FEM) in solving the matrix equation. The thermal problem uses time-domain nodal finiteelement method. An analytical technique to tuning a single-mode cavity is presented. In this technique the iris aperture and the cavity length are adjusted. Finally, the single-mode cavity is characterized. This characterization consists in evaluating the sensibility of the tuning by changing some cavity parameters.