Simulation and design of nonlinear microwave circuits

Summary form only given. Modern CAD (computer-aided-design) techniques that are available or under development for tackling several fundamental aspects of simulation and design problems for nonlinear analog microwave circuits were discussed, with emphasis on software methodology. Multitone excitation, including frequency domain, mixed-mode, and Volterra series methods, and their convergence, was discussed, and frequency conversion in nonlinear devices was analyzed. A generalized CAD approach to noise analysis was outlined, with the linearized mixer as a special case. The simulation of autonomous circuits and their global stability analysis were considered. Modern optimization methods for nonlinear circuits and algorithms for the fast computation of exact sensitivities were reviewed. The application of vector and parallel processing was examined, illustrated by a few typical large-size simulation and design problems.<>