Learning Forum

[Tazeen Shaikh]

How to introduce radial uniaxial material (permittivity matrix given below) in material assignment in HFSS (only cartesian  x- y-z entries are provided)?

[dushyant.marathe]

Hi Tazeen,

Thanks for posting your query. If you require help on how to setup the anisotropic permittivity, I would suggest you to follow a section titled "Defining Anisotropic Tensors" from HFSS help PDF.

While creating a new material definition, there is dropdown to select 'Anisotropy'. 

If you are looking for Tensor, you can do so from 'Type' dropdown.

Thanks

[Tazeen Shaikh]

Thank you for your reply. Using what you have suggested I can only introduce anisotropy when the permittivity matrix is defined in cartesian coordinates. I want to define anisotropy in spherical (r,theta,phi) coordinate system. Kindly suggest how it can be done.

[dushyant.marathe]

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.