Computation of far radiation field of an arbitrarily oriented dipole above anisotropic half space

The far field formulation of an arbitrarily oriented electric dipole located at the interface of layered anisotropic half space is deduced based on the reciprocity theorem. Then, considering the optical path difference of the directed wave and reflected wave, the formulation of the electric dipole located above the interface of layered anisotropic half space is discussed. The General Transmitting Matrix (GTM) method is used to compute the reflection coefficients of anisotropic layered half space. Finally, numerical example of the electric dipole located at the interface of anisotropic half space is given. The numerical results show that this method can be used in the fast computation of far radiation field of an arbitrarily oriented dipole above layered anisotropic half space.