**"RF
Systems and Design, Introduction to High-frequency Amplifier Design,"
Martin Chow, Hong Kong Polytechnic University.. **

**Abstract:**

This set of notes introduces some fundamental concepts which will be used in
the analysis and design of high-frequency networks. These concepts are most
useful at those frequencies where distributed rather than lumped parameters
must be considered. We discuss transmission line, microstrips, S-parameter,
signal flow graph, power gains, stability criteria, stability circles, constant
gain circles, constant noise figure circles and high-frequency amplifier design
using S-parameter. Numerical design examples and real circuit layouts are also
given such that readers can understand the concepts easily.