Numerical evaluation of the Greens's functions for cylindrical enclosures by a new spatial images method
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AuthorQuesada Pereira, Fernando Daniel; Vera Castejón, Pedro; Cañete Rebenaque, David; Pascual García, Juan; Álvarez Melcón , Alejandro
Research GroupElectromagnetismo Aplicado a las Telecomunicaciones
Knowledge AreaTeoría de la Señal y las Comunicaciones
SponsorsThis work was supported by the Spanish National Project ESP2001-4546-PE and by the Regional Seneca Project 2002 PB/4/FS/02
Realizado en/conUniversidad Politecnica de Cartagena
Bibliographic CitationF. D. Q. Pereira, P. V. Castejon, D. C. Rebenaque, J. P. Garcia and A. A. Melcon, "Numerical evaluation of the Green's functions for cylindrical enclosures by a new spatial images method," in IEEE Transactions on Microwave Theory and Techniques, vol. 53, no. 1, pp. 94-105, Jan. 2005, doi: 10.1109/TMTT.2004.839332.
Integral equations (IEs)
In this paper, a spatial images technique is used to efficiently calculate the mixed potential Green's functions associated to magnetic sources when they are placed inside a circular cylindrical cavity. The technique places magnetic dipole images and charges outside the cylindrical region. Their strength and orientation are then calculated by imposing the appropriate boundary conditions for the fields at discrete points of the metallic wall. In this paper, the basic technique is combined with spatial domain multilayered Green's functions formulated with Sommerfeld integrals. This allows the analysis of practical multilayered circuits shielded in circular cavities. Convergence results are shown to demonstrate the usefulness of the technique. Two practical microwave circuits are also analyzed to show the validity of the formulation.
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