First-Time-Right_Design_of_RF-Microwave_Amplifiers_-_copyrightFirst-Time-Right Design Of RF/Microwave Class A Power Amplifiers Using Only S-Parameters The sequel to "Tandem RF software programs streamline the design of power amplifiers" [7] By Ivan Boshnakov (ivanb@aerial.co.uk), Senior Principal Engineer Aerial Facilities Limited (www.aerialfacilities.com) This article describes and discusses a procedure of how to design RF/Microwave Class A power amplifiers in a very efficient and highly accurate manner when the only initial data available are the S-parameters of the transistors. As in the prequel [7], two software programs are used in conjunction and interaction: a specialized RF/Microwave amplifier design software tool and a generalpurpose simulator (nodal analysis program). This time the simulator is not used for its nonlinear analysis capabilit……