booktext@id88013717placeboieFundamentals of RF Circuit Design with Low Noise Oscillators. Jeremy Everard Copyright 2001 John Wiley & Sons Ltd ISBNs: 0-471-49793-2 (Hardback); 0-470-84175-3 (Electronic) 3 Small Signal Amplifier Design and Measurement 3.1 Introduction So far device models and the parameter sets have been presented. It is now important to develop the major building blocks of modern RF circuits and this chapter will cover amplifier design. The amplifier is usually required to provide low noise gain with low distortion at both small and large signal levels. It should also be stable, i.e. not generate unwanted spurious signals, and the performance should remain constant with time. A further requirement is that the amplifier should provide good reverse isolation to prevent, for example, LO breakthrough f……