DC Resistance and Inductance Solution

To calculate the DC resistance and inductance matrices, Q3D Extractor does the following:

• Divides the interior of the conductors into a finite element mesh.
• Applies 1 amp to one of the source terminals while open-circuiting the remaining source terminals.
• Computes the electrostatic potential and volume current density everywhere within the excited conductors using the finite element conduction solver.
• Finds the resulting voltages on the source terminals. These give the entries for one column of the DC resistance matrix.
• Uses the IE solver to evaluate the magnetic fields produced by the DC current distribution, and finds the resulting stored energy. This gives the DC inductance values.
• Repeats the above process for every source terminal, setting each source in turn to 1 Amp while open-circuiting the others, until solutions have been obtained for each source.