Abstract
The electromagnetic scattering from axisymmetric conducting or nonconducting (dielectric) obstacles, embedded in an axisymmetric dielectric body is treated. A surface integral equation formulation, consisting of coupled Fredholm equations of the first kind for the electric and magnetic fields, is solved by the method of moments. The outer surfaces of the internal obstacles and the embedding dielectrics can be nonconcentric, depart significantly from a spherical shape, but must be rotationally symmetric about a common axis. The embedding dielectric can be multilayered. Computer implementable expressions are given for the scattering cross sections for any desired polarization and for both backscatter (monostatic) and bistatic illumination. Comparisons are made with the extended boundary condition method for homogeneous dielectric bodies and the Mie theory extended for dielectrically clad conducting spheres. The generality of the present formulation is demonstrated for several other cladded scatterer configurations.
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This research was conducted under the McDonnell Douglas Independent Research and Development Program.
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Medgyesi-Mitschang, L.N., Eftimiu, C. Scattering from axisymmetric obstacles embedded in axisymmetric dielectrics: The method of moments solution. Appl. Phys. 19, 275–285 (1979). https://doi.org/10.1007/BF00900471
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DOI: https://doi.org/10.1007/BF00900471