资料介绍
Chap3Radio Frequency Circuit Design. W. Alan Davis, Krishna Agarwal Copyright 2001 John Wiley & Sons, Inc. Print ISBN 0-471-35052-4 Electronic ISBN 0-471-20068-9
CHAPTER THREE
Impedance Matching
3.1
INTRODUCTION
A major part of RF design is matching one part of a circuit to another to provide maximum power transfer between the two parts. Even antenna design can be thought of as matching free space to a transmitter or receiver. This chapter describes a few techniques that can be used to match between two real impedance levels. While some comments will be made relative to matching to a complex load, the emphasis will be on real impedance matching. The rst part of this chapter will discuss the circuit quality factor, Q. The Q factor will be used with some of the subsequent matching circuit d