Multilevel transceiver modeling and simulation

We consider simulation techniques for RF circuits and systems and different modeling levels. The probable ways to combine models of different levels within one design environment are proposed and a multilevel modeling and simulation framework structure is substantiated. A new implementation of such an environment is described. It allows usage of different level models in one simulation process. In order to provide detailed simulation of the communication link, different system level techniques and models should used. They may be combined via co-simulation, or using macro (behavioral) modeling approaches. Correspondent modeling levels are shown. The required structure of the multilevel simulation framework is outlined and grounded. Usage of modern HDL is shown to be advisable. The structure of the simulation framework reflects the communication link structure. Such a structure is implemented by the author in the Rincon harmonic balance simulator using the Frequency Domain VHDL-AMS language extension. Its usage is illustrated in simulation of the communication transmitter outlined. It is described using behavioral models mostly, but some blocks are specified as netlists. Simulation results are presented.