Every year, tens of thousands of young engineers and university graduates enter the fascinating professional field of radio frequency (RF) design. Most of them have a reasonable understanding of applied mathematics and physics, circuit theory, electromagnetism, and electronics as well as computers and programming. Despite the comprehensive courses and overwhelming educational literature, however, many of these talented young people have to face the crude practical project environment of systems and equipment without much prior knowledge of, or tutorials about, how and why things are done the way they are done. I was once in that situation. Typically, nobody in the office has time enough to explain things—and not. | Pekka Eskelinen Introduction to RF Equipment and System Design For a listing of recent titles in the Artech House Radar Library turn to the back of this .