An interpolated spatial images method for the analysis of multilayered shielded microwave circuits
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AuthorGómez Díaz, Juan Sebastián; Martínez Mendoza, Mónica; Pérez Soler, Francisco J.; Álvarez Melcón , Alejandro
Research GroupGrupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)
Knowledge AreaTeoría de la Señal y las Comunicaciones
SponsorsThis work was partially supported by the Spanish Ministry of Education and Science under Grant FPU-AP2006-015 and with the Project TEC2007-67630-C03-02.
Bibliographic CitationGÓMEZ DÍAZ, J.S., MARTÍNEZ MENDOZA, M., PÉREZ SOLER, F.J., ÁLVAREZ MELCÓN, A. An interpolated spatial images method for the analysis of multilayered shielded microwave circuits. Microwave and Optical Technology Letters, 50 (9): 2294-2300, Septiembre 2008. ISSN 0895-2477
KeywordsFunciones de Green
Métodos de momentos
Método de interpolación
Method of Moments (MOM)
In this paper, an efficient interpolation method is presented in order to compute the Green’s function associated to electrical sources, when they are placed inside cylindrical cavities. The interpolation scheme is formulated in the frame of the spatial images technique recently developed. The original idea was to calculate, for every location of a point electric source, the complex values of the electric dipole and charge images, placed outside the cavity, to impose the appropriate boundary conditions for the potentials. In order to considerably reduce the computational cost of the original technique, a simple interpolation method is proposed to obtain the complex values of the images for any source location. To do that, a rectangular spatial subdivision inside the cavity is proposed. Each new sub-region is controlled by means of the exact images values obtained when the source is placed at the four corners of the region. The key idea is to use a bilinear interpolation to obtain ...
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