The main objective of this book has remained to present a unified treatment of the analysis and design of microwave transistor amplifiers using scattering parameters techniques. The term microwave frequencies is used to refer to those frequencies whose wavelengths are in the centimeter range (i.e., 1 to 100 cm). However, the design procedures and analysis presented in this book are not limited to the microwave frequencies. In fact, they can be used in any frequency range where the scattering parameters of a transistor are known..