System-level construction of multiconductor transmission line capacitance matrix

The relation between MTL (multiconductor transmission line) capacitance matrix and two-conductor isolated capacitance has not been systematically studied, so classical methods usually adopt complex and time-consuming micro-elements analysis to compute MTL capacitance matrix. To solve the problem, a novel method uses two-conductor isolated capacitance to construct MTL capacitance matrix on system-lever is proposed, which chooses wire rather than micro-element as the unit for analysis to simplify analysis. Simulations show that the novel method is as accurate as classical methods, but the time-cost is much smaller than classical methods'.