Which solver are you using, FEM, FDTD or MoM?

μWave Wizard supports the concept of combining several solvers, such as 2D and 3D-FEM, Mode Matching and Spherical Wave Expansion. FEM and Mode Matching are generally used for simulating RF performance of enclosed structures such as waveguides, coax or planar assemblies while Spherical Wave Expansion is used for radiating structures. Structures such as antenna feed networks will usually be solved by a combination of all methods.