1. Uso combinado de imágenes espaciales con planos de masa dinámicos: aplicación al análisis de cavidades rectangulares multicapa
- Author
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Gómez Díaz, Juan Sebastián, García Vigueras, María, Cañete Rebenaque, David, Álvarez Melcón , Alejandro, and Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)
- Subjects
Filter in hybrid waveguide-microstrip technology ,Teoría de la Señal y las Comunicaciones ,Space image ,Funciones de Green ,Cavidad rectangular multicapa ,Guía de onda ,Waveguide ,Green's functions ,Imagen espacial ,Filtros en tecnología híbrida guiaonda microstrip ,Multilayer rectangular cavity ,Microstrip - Abstract
The use of ground planes is proposed inside the spatial images technique in order to calculate the multilayered shielded Green’s functions for rectangular enclosures. The positions of the ground planes are dynamically located, covering two walls of the cavity, as a function of the source position. Spatial mirror images, related to the ground planes, are used to perfectly impose the boundary conditions along these cavity walls. This completely removes the problems associated to the singular behavior of the source when it is placed close to a wall or a corner, improving numerical stability. In addition, the method leads to a very efficient computation (about 15 times faster than the original approach), due to the reduced number of non-mirror images that must be effectively computed. A multi-band filter in hybrid waveguide-microstrip technology is analyzed with the new method, showing excellent agreement with measured data.
- Published
- 2010