RADIATION PROPERTIES OF A BIAXIALLY ANISOTROPIC DIELECTRIC SPHERE EXCITED BY A DIPOLE

The radiation properties of a dielectric sphere with biaxial anisotrop y are investigated. The excitation source is assumed to be an elementa ry dipole of arbitrary orientation illuminated at the centre of the an isotropic sphere. The primary field is defined and computed in terms o f the convenient spherical vector wave functions, by solving the wave equation in the phase space. The boundary conditions at the sphere sur face are satisfied and following the method of moments, Fourier series and spherical vector wave functions series are employed to express th e unknown reflected and scattered fields at the sphere inner and outer region respectively. Although main emphasis is given to theoretical a nalysis, some numerical results are computed and presented.