Minimal-order circuit model based fast electromagnetic simulation

State-of-the-art electromagnetics-based circuit simulators perform circuit simulation on the physical layout of an integrated circuit, the size of which can be large even for an optimal-complexity simulator to analyze it efficiently. We find a frequency- and time-independent minimal-order model of the integrated circuit from DC to high frequencies for any prescribed accuracy based on electromagnetics. The model size is only two for RC circuits and minimal such as tens for RLC and fullwave circuits, regardless of the original circuit size and the number of input/output ports. Numerical experiments demonstrate the superior performance of the proposed minimalorder model based fast electromagnetic simulation.