RL-GO Parameters

A number of optional parameters are available when using ray launching geometrical optics (RL-GO) to solve parts of the model.

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.

Decouple UTD/RL-GO and MoM solutions

This option ignores the RL-GO regions when calculating the MoM currents.

Tip: Where the MoM and RL-GO regions are electrically far apart and far field quantities are of interest, decouple the solution to reduce the memory and run-time without sacrificing the accuracy of the results.

Export ray file for post-processing

This option exports the rays during the RL-GO solution process to a .ray file. The ray-tracing information is also stored in the .bof and you can view the rays in POSTFEKO.

Note: Large .ray files are possible when the MoM and RL-GO solution have not been decoupled and the MoM region contains a large number of mesh elements.

Maximum number of RL-GO ray interactions

This option limits the number of ray interactions (reflection and diffraction combined). For example, if this parameter is set to 3, a ray can have three reflections, or two reflections and a diffraction. A value of 0 means that only direct rays are taken into account.