Tromma™- Anisotropic Planar Multilayer Design Code

Tromma™ is used to design planar absorber structures and radomes consisting of layers of materials of anisotropic constitutive parameters with impedance sheets at the layer interfaces. Both Mu and Epsilon of each layer are allowed to be a tensor.

The code calculates the Fresnel reflection and transmission coefficients for arbitrary angle of incidence and arbitrary polarization using a general coordinate geometry. It includes an optimizer which is employed mainly to refine parameters such as material thickness near a design point. The code is also used to model shielding effectiveness in the far field and as an aid in the interpretation and prediction of expected coax and waveguide S-parameter measurements of materials.