Effect of mode-stirrer configurations on dielectric heating performance in multimode microwave applicators
Autor
Plaza González, Pedro; Monzó Cabrera, Juan; Sánchez Hernández, David Agapito; Catalá Civera, José ManuelGrupo de investigación
Grupo de Ingeniería de Microondas, Radiocomunicaciones y Electromagnetismo (GIMRE)Área de conocimiento
Teoría de la Señal y las ComunicacionesPatrocinadores
This work was supported in part by the Spanish Science and Technology Ministry under Project TIC2001-2778-CO2-02.Fecha de publicación
2005-05Editorial
IEEE Microwave Theory and Techniques SocietyCita bibliográfica
PLAZA GONZÁLEZ, Pedro, MONZÓ CABRERA, Juan, CATALÁ CIVERA, José Manuel, SÁNCHEZ HERNÁNDEZ, David. Effect of mode-stirrer configurations on dielectric heating performance in multimode microwave applicators . IEEE Transactions on Microwave Theory and Techniques, 53 (5): 1699-1706, May 2005. ISSN 0018-9480Palabras clave
Materiales dieléctricosCalefacción electromagnética
Análisis por elementos finitos
Onda plana
Modo agitador
Dielectric materials
Electromagnetic heating
Plane wave
Mode stirrer
Resumen
In this paper, several mode-stirrer configurations are
compared in order to establish their influence on the electric-field
uniformity within an irradiated dielectric sample inserted in a microwave-
heating applicator. Two different scenarios are evaluated
with metallic sheets moving inside the multimode applicator. The
different stirrer configurations are tested and compared for low-,
medium-, and high-loss dielectric sample materials. Additionally, a
straightforward procedure based on a generalized plane-wave approach
is proposed and evaluated as a computationally efficient alternative
for calculating the electric-field distribution inside materials
processed in these microwave applicators with mode stirrers.
Although very different electric patterns are achieved depending
on stirrer geometry and sample permittivity, the plane-wave approach
has been shown to provide a very good approximation for
medium and high lossy dielectric materials.
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