Abstract
The electromagnetic scattering by a three-dimensional arbi- trarily shaped rotationally uniaxial anisotropic object is studied. Elec- tromagnetic fields in a uniaxial medium are solved for first using the method of separation of variables, and then expressed in a very com- pact form by introducing the modified spherical vector wave functions. The equivalence theorem and the T-matrix method are applied in the analysis of the scattering problem. The scattered fields and the dyadic Green's functions both external and internal to the scatterer are de- rived in terms of spherical vector wave functions and matrix-form coef- ficients. Through making use of the dyadic Green's functions obtained, numerical results are provided for an incident field excited by an in- finitesimal dipole. The scatterers are assumed to be prolate and oblate dielectric spheroids with the rotational z-axis. The angular scatter- ing intensities in far-zone are plotted for all these cases. And some conclusions are also drawn eventually from numerical discussions.
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