fmm_matrices.transverse_permeability_vector_anisotropic

fmm_matrices.transverse_permeability_vector_anisotropic

Compute the transverse permeability matrix with a vector scheme.

The transverse permeability matrix M relates the magnetic and magnetic flux density fields, such that

[Bx, Bx]^T = M [Hx, Hy]^T

Important differences from the _transverse_permittivity_vector_anisotropic function result from the different definitions of E and M matrices.

Args:

• permeability_xx: The xx-component of the permeability tensor, with shape (..., nx, ny).
• permeability_xy: The xy-component of the permeability tensor.
• permeability_yx: The yx-component of the permeability tensor.
• permeability_yy: The yy-component of the permeability tensor.
• tx: The x-component of the tangent vector field.
• ty: The y-component of the tangent vector field.
• expansion: The field expansion to be used.

Returns:

• None: The transverse permeability matrix.