Ansys Employee

Hi Tazeen, 

As suggested please refer a section titled "Defining Anisotropic Tensors" from HFSS help PDF. There you will find more details on tensor conversion from Spherical to
Cartesian co-ordinate system. HFSS accepts definitions for spatial-dependent martial properties only using definitions in a Cartesian coordinate system. Spherical and Cartesian bases are related throgh transformation matrix. Thanks.