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A fast integral equation technique for shielded planar circuits defined on nonuniform meshes

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3 Author(s)
G. V. Eleftheriades ; Lab. d'Electromagn. et d'Acoust., Ecole Polytech. Federale de Lausanne, Switzerland ; J. R. Mosig ; M. Guglielmi

In this work, the groundwork is laid out for the realization of efficient integral-equation/moment-method techniques, with arbitrary types of basis functions, for the computer-aided design (CAD) of geometrically complex packaged microwave and millimeter-wave integrated circuits (MMIC's). The proposed methodology is based on an accelerated evaluation of the Green's functions in a shielded rectangular cavity. Since the acceleration procedure is introduced at the Green's function level, it becomes possible to construct efficient shielded moment method techniques with arbitrary types of basis-functions. As an example, a Method of Moments (MoM) is implemented based on the mixed potential integral equation formulation with a rectangular, but nonuniform and nonfixed, mesh. The entire procedure can be extended to multilayer substrates

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IEEE Transactions on Microwave Theory and Techniques  (Volume:44 ,  Issue: 12 )