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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