Designed to be more accessible with minimum discussion of electromagnetic field principles, this book provides Matlab routines to carry out simple transmission line computations and allow the graphical display of the resulting impedance behaviors to be part of the Smith Chart. It also uses a PC-based commercial RF circuit simulation tool (MMICAD by Optotek, Inc.) to demonstrate the actual circuit behavior. The book covers a number of important topics, including RF Amplifier Designs; Matching Networks; Scattering parameters; Smith Chart; Oscillators and Mixers; common filter types; the high-frequency behavior of common circuit components; the theory of distributed parameters through a discussion on Transmission Lines; and active/passive RF circuits. It also provides features to make the material easier to digest, including self-contained chapters that require only simple mathematical skills (calculus) and examples that are strategically dispersed throughout the chapter to clarify and explain the theoretical developments.