A novel center of charge method (CCM) is introduced to solve multi-conductor capacitance extraction problems. It combines the features of Appel’s algorithm and the fast multipole algorithm (FMA). The second order CCM as well as the first order CCM are derived to approximate the far field. The symmetry in the solution can be preserved and the charge distribution can be improved through the second order approximation. The relations between CCM and FMA are studied. Numerical examples demonstrate that CCM uses less CPU time, needs less memory and has very good accuracy compared to MoM and FMA.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Electrical and Electronic Engineering