9.1.2    Multiple-filled cells

As it was mentioned above QW-Editor creates and exports to QW-Simulator a conformal mesh that may include cells filled with two different media (two dielectrics or metal and dielectric). In the case of complicated geometries, the mesh generator may initially create cells filled with three or more media. We shall call them multiple-filled cells. Multiple-filled cells will be simplified according to the following rules:

·       If the QW-Editor finds a cell shared by a metal and two different dielectrics, it assumes that the cell is shared between the metal and the dielectric occupying larger part of the cell (replacing with it also the other dielectric),

·       If the QW-Editor finds a cell shared by three different dielectrics, it assumes that the cell is shared between the two dielectrics occupying larger parts (and neglects the presence of the third dielectric),

·       In the case of cells occupied by more than three media the QW-Editor will assume that the cell is shared between two media occupying two largest parts.

These simplification rules are still under intensive tests. Thus temporarily the user is encouraged to use Test Mesh window in QW-Simulator to verify the mesh created in regions of complicated geometry. In general, since the QW-Simulator treats more accurately cells filled with one or two media, it is recommended to avoid multiple-filled cells by defining Mesh Snapping Planes passing through sensitive junction points.