Field Simulation Methods

In order to generate an electromagnetic field solution, Q3D Extractor employs a combination of the Finite Element Method (FEM) and the Method of Moments (MoM).

In general, FEM divides the full problem space into smaller regions (tetrahedral elements) and represents the field in each sub-region with a local function. MoM divides up the surface (or volumes) of conductors and dielectrics into many triangular (or tetrahedral) elements to represent the charges and currents present.

The choice of which method to use depends on the quantity being calculated. Q3D solves DC resistance problems using FEM (to model current flow within the conductors), while inductance and capacitance problems are solved using MoM.