Simple approach solving low-frequency breakdown problem in MLA PEEC method

A simplified partial element equivalent circuit (PEEC) model for low frequency is presented by opening the partial self capacitors in the traditional modified loop analysis (MLA) PEEC model when the frequency is lower than a threshold determined by the setup rank of the impedance matrix produced by MLA formulations. Theoretical analysis and numerical results indicate that the MLA model combined with the simplified model can also give a stable simulation from DC to high frequencies with fewer unknowns compared with the modified nodal analysis method.