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A Combination of Current- and Ray-based Techniques for the Efficient Analysis of Electrically Large Scattering Problems


U. Jakobus and F. M. Landstorfer

Institut fur Hochfrequenztechnik, University of Stuttgart

We extend the current-based method of moments/physical optics hybrid method by the ray-based diffraction theory (UTD). In this paper emphasis is placed on the general methodology of the new hybrid formulation as well as on some details concerning the coupling between the different regions. Special care is taken when electromagnetic sources are located close to the UTD-region or even directly on its surface. An example is given which shows the accuracy of the hybrid approach and the achievable reduction in memory and computation time.

Conference Proceedings of the 13th Annual Review of Progress in Applied Computational Electromagnetics

1997

March



748 - 755