What are the analyses provided by Eldo RF compared to Eldo?
A – The fundamentally different (compared to ‘regular’ Eldo) analyses supported by Eldo RF are the steady-state analysis and the modulated steady-state analysis. The “steady” state is defined as the state when all initial transients have vanished, and the circuit operates with periodic or quasi-periodic large signals only. Eldo RF computes this steady state in the frequency domain. Thus the results are typically presented as a spectrum in the frequency domain. Eldo RF also automatically converts the results in the time domain, if requested by the user. Modulated steady-state analysis is a mixed time-frequency algorithm, which efficiently handles the modulation information carried by RF signals. The output of the modulated steady-state analysis is a time-varying spectrum. The modulated steady-state algorithm is the key to Questa ADMS RF. Other analyses are also possible, such as the steady-state small signal analysis, steady-state noise analysis and local stability analysis.
