%0 Journal Article %A Gómez Díaz, Juan Sebastián %A Martínez Mendoza, Mónica %A Quesada Pereira, Fernando Daniel %A Álvarez Melcón , Alejandro %T Efficient Calculation of the Green's Functions for Multilayered Shielded Cavities with Right Isosceles-Triangular Cross-Section %D 2009 %@ 1751-8725 %U http://hdl.handle.net/10317/8505 %X An efficient calculation of the Green’s functions inside multilayered shielded cavities with right isosceles-triangular cross-section is presented. The method is entirely developed in the spatial domain, and it is based on image theory. The idea is to use the spatial-domain Green’s functions inside a multilayered shielded square box, in order to accurately obtain the Green’s functions for the right isosceles-triangular cavity. Image theory is then used to enforce the boundary conditions along the non-equal side of the triangle. It is shown that the new algorithm is very robust, with limited computational effort. Resonance frequencies and potential patterns of a triangular cavity have been calculated and compared with those obtained by other techniques, showing very good agreement. Finally, a transversal filter inside a multilayered triangular-shaped cavity is designed, manufactured and tested using the developed technique. %K Teoría de la Señal y las Comunicaciones %K Green's functions %K Microstrip fliters %K Integral equations %K Image theory %K 3325 Tecnología de las Telecomunicaciones %~ GOEDOC, SUB GOETTINGEN