Design of transistor I.F. amplifiers-stability and power gain

The two most important stability criteria are presented and expressions for power gain are given in terms of them. Expressions for the input admittance of a stage are given, and the beneficial effects of loading the input port are shown. The interaction of stages is discussed with reference to overall stability. The advantages and disadvantages of making all stages of a multistage amplifier identical are given, and compared with a method of designing each stage separately.