
CHAPTER 15
Microwave Diodes
OBJECTIVES
1. Learn the history and evolution of microwave diode development.
2. Understand the limitations of ordinary
PN
junction diodes that prevent their
operation at microwave frequencies.
3. Learn the operation of point contact, Schottky, varactor,
PIN,
and tunnel
diodes at microwave frequencies.
4. Be introduced to the concept of
negative resistance.
15-1
PREQUIZ
These questions test your prior knowledge of the material in this chapter. Try an-
swering them before you read the chapter. Look for the answers (especially those
you answered incorrectly) as you read the text. After you have finished ...