Creating a UTD Cylinder

Solve a cylinder with the uniform theory of diffraction (UTD). The cylinder can either be a finite, semi-infinite or infinite, depending on the termination type of the start cap and end cap.

1. Create a cylinder.
2. Select the cylinder in the 3D view or in the details tree.
3. In the details tree, from the right-click context menu, select Properties.
4. On the Modify Region dialog, click the Solution tab.

   
   

   

   
   Figure 1. The Modify Region dialog (Solution tab).

5. Under Solution method, from the drop-down list, select Uniform theory of diffraction (UTD) cylinder.
6. Under Termination type, specify if the UTD cylinder is infinite or finite sized at the start and/or end cap.
   • To define a finite or semi-finite cylinder, select the Start cap and/or End cap check boxes.
   • To define an infinite cylinder, clear the Start cap and End cap check boxes.
7. Click OK to save the region properties and to close the dialog.