An Integrated Tool for High Speed Circuit Design Including Substrate Effects

Abstract : An integrated environment for layout-oriented design of high speed circuits is the main target of this study. The simulation environment would include a full-wave electromagnetic simulator and a circuit simulator(fREEDA, with a front engine), which is the major emphasis in this document. fREEDA implements local reference node instead of a global ground and this is crucial for distributed circuits. The models are implemented in object-oriented fashion and uses automatic differentiation. The same model can be used for DC, transient and harmonic balance analysis.