Changes

It is well known that any planar geometry with any degree of complexity can be reasonably discretized using a surface triangular mesh. EM.Cube's [[Planar Module]] provides a versatile triangular mesh generator for this purpose. This generates a regular mesh, in which most of the triangular cells have almost equal areas. The uniformity or regularity of mesh is an important factor in warranting a stable numerical solution. A highly incongruous mesh may even produce completely erroneous results. EM.Cube's [[Planar Module]] also offers another mesh generator that creates a "Hubrid" planar mesh combining triangular and rectangular cells. Although triangular cells are more versatile than rectangular cells in adapting to arbitrary geometries, many practical planar structures contain a large number of rectangular parts like patch antennas, microstrip lines and components, etc.

Figure 1: Planar hybrid and triangular meshes for rectangular patches.