The Planar Mesh Settings dialog gives a few more options for customizing your planar mesh around geometrical and field discontinuities. You can check the check box labeled "'''Refine Mesh at Junctions'''", which increases the mesh resolution at the connection area between rectangular objects. Or you can check the check box labeled "'''Refine Mesh at Gap Locations'''", which may prove particularly useful when gap sources or lumped elements are placed on a short transmission line connected from both ends. Or you can check the check box labeled "'''Refine Mesh at Vias'''", which increases the mesh resolution on the cross section of embedded object sets and by extension at the connection regions of the metallic objects connected to them. EM.Cube typically doubles the mesh resolution locally at the discontinuity areas when the respective boxes are checked.
[[File:PMOM41.png|800px]]
Figure 1: Refining the planar mesh at the via and surrounding area.
=== Checking Mesh Integrity ===