Interactive Modeling of Composite Two-Dimensional Scatterers Using Dielectric, Conducting and Impedance Circular Cylinders.



Computation of electromagnetic scattered or radiated fields from complex two dimensional scatterers can be a slow and expensive process. Quicker results may be obtained through geometrical approximation of the actual scatterers by smaller objects for which efficient techniques can be used. In this circular cylinder modeler (CCM) interactive software, the approximation of a complex scatterer is achieved by using circular cylinders. The cylinders are made of either homogeneous isotropic dielectric material, perfectly conducting material, material characterized by a surface impedance, or a combination thereof. The user interface is designed for quick construction of two dimensional scatterers using circular cylinders of arbitrary radii. The method of solution is based on a rigorous analysis for the scattering by multiple cylinders. In this technique the appropriate boundary condiitons due to the initial source of excitation and all infinite interactions of scattered waves between the cylinders are applied on the surface of each cylinder. The original source of excitation can be a plane wave or a line source field with either TM or TE type of polarization.

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