Anisotropic

There are three keywords associated with anisotropic materials. The keywords are listed below:

• ANISOTROPIC BODY

• ANISOTROPIC SURFACE

• ANISOTROPIC LINE

Anisotropic materials, in EMA3D®, are linear and frequency independent. Anisotropic materials include both electric and magnetic lossy materials characterized by user-supplied entry values in the matrices of the conductivity ( σ̿ ), the permittivity ( ε̿ ), the permeability ( μ̿ ), and the magnetic conductivity ( σ̿m ) tensors. The skin depth arguments, presented in the discussion of isotropic materials above, also need consideration for anisotropic materials, in a similar, although more complex manner. If anisotropic materials overlap, then the last one defined, meaning the last in the EMA3D input file, takes precedence. The region of overlap will, therefore, be redefined to possess the electromagnetic parameters of this last anisotropic material in the input file. The tensor notation, and range of associated values, is given below: