UTD Ray Contributions

A number of optional ray contribution parameters are available when using the uniform theory of diffraction (UTD) to solve a face or faces.

On the Solve/Run tab, in the Solution settings group, click the  Solver settings icon. On the Solver settings dialog, click the High frequency tab.

Direct and reflected

This option takes into account both the direct rays and reflected rays.

Edge and wedge diffractions

This option takes into account the diffraction on edges and wedges. The ray may include an arbitrary number of reflections, but only one diffraction.

Note: The total number of interactions (number of reflections plus one) for the diffraction may not be larger than the value specified in the Maximum number of UTD ray interactions field.

Corner diffraction

This option takes into account the corner diffraction.

Double diffraction

This option takes into account the double diffraction on edges and wedges and the combinations of reflections. Single diffraction rays are not included for this option.

Creeping waves

This option takes into account the creeping waves on curved surfaces.

Cone tip diffraction

This option takes into account the tip diffraction at the tip of the cone.