Neural-Based Dynamic Modeling of NonlinearIEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 50, NO. 12, DECEMBER 2002 2769 Neural-Based Dynamic Modeling of Nonlinear Microwave Circuits Jianjun Xu, Student Member, IEEE, Mustapha C. E. Yagoub, Member, IEEE, Runtao Ding, and Qi-Jun Zhang, Senior Member, IEEE Abstract―A neural network formulation for modeling nonlinear microwave circuits is achieved in the most desirable format, i.e., continuous time-domain dynamic system format. The proposed dynamic neural network (DNN) model can be developed directly from input……