Envelop Transient analysis: a new method for the transient and steady state analysis of microwave communication circuits and systems

International audienceDownload Citation Email Print Request Permissions Save to Project The two popular and general purpose simulation techniques, Time Domain Integration and Harmonic Balance, do not fulfil the requirement for analysis of microwave communication systems with arbitrary modulated carrier frequency. A new technique is presented, which overcomes this default. A dramatic saving in computer memory space and computation time is obtained with respect to the previous methods

New and efficient method for the multitone steady-state circuit simulation

International audienceA new method termed compressed time is presented to compute the steady-state response of nonlinear circuits with periodic or quasi-periodic excitation. It is different from standard or enhanced shooting method or harmonic balance (HB) and allows the simulation of large systems such as large circuits and large number of harmonics. It is based on a time domain formulation of HB equations written in a preconditioned form. The generated system is then solved with a nonlinear block relaxation algorithm. Performances and simulation results are shown for a typical RF circui