A Numerically Efficient Formulation for Time-Domain Electromagnetic-Semiconductor Cosimulation for Fast-Transient Systems

作者:Chen Quan*; Schoenmaker Wim; Chen Guanhua; Jiang Lijun; Wong Ngai
来源:IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2013, 32(5): 802-806.
DOI:10.1109/TCAD.2012.2232709

摘要

We report recent progress in developing a numerically efficient formulation for electromagnetic-technology computer-aided design cosimulation for fast-transient computations. The difficulties underlying the currently existing transient formulation stemming from the vector potential-scalar potential (A-V) framework are analyzed. A time-domain electric field-scalar potential (E-V) framework is then developed via equation and variable transformations. This results in better-conditioned systems that are friendly to iterative solutions at fast switching times. Numerical examples show that the proposed E-V solver renders a useful tool for addressing multidomain simulation.