CIA-a comprehensive CAD tool for analog, RF, and microwave IC´s

Author has constructed an original CAD tool called CIA (Circuit Interactive Analyser). The programme has built-in modified models for GaAsFET, other semiconductor elements, and transmission lines. New features of the GaAsFET model are summarised in the first section. The CIA program comprises several types of analyses that are not customary in the PSPICE class. The poles-zeros, steady-state, optimisation and sensitivity analyses are characterised in the following sections. A tuneable distributed microwave oscillator as an example is analysed in the fifth section-poles-zeros diagram and steady-state are presented here.