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Contents
Field Effect Transistors, 79
Problems, 86
2 MATCHING NETWORKS AND SIGNAL FLOW GRAPHS
92
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
93
Introduction,
92
The Smith Chart,
.The Normalized Impedance and Admittance
Smith Chart, 105
Impedance Matching Networks,
Microstrip Matching Networks,
112
141
Microstrip Lines, 141
Design of Matching Ne!works, 152
Signal Flow Graphs and Applications,
175
Applications of Signal Flow Graphs, 180
Power-Gain Expressions: Alternate
Derivations, 185
Power-Gain Expressions in Terms ofSp
parameters, 192
VSWR Calculations, 194
Problems, 200
3 MICROWAVE TRANSISTOR AMPLIFIER DESIGN
212
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
212
Introduction,
Power Gain Equations, 213
Stability Considerations,
Constant-Gain Circles: Unilateral Case, 228
217
Unconditionally Stable Case, ISi;1 < 1, 231
Potentially Unstable Case, ISi;1 > 1, 234
Unilateral Figure of Merit, 238
Simultaneous Conjugate Match:
Bilateral Case, 240
Operating and Available Power-Gain Circles, 247
Operating Power-Gain Circles, 247
Unconditionally stable bilateral case, 247
Potentially unstable bilateral case, 252
Available Power-Gain Circles, 257
Unconditionally stable bilateral case, 257
Potentially unstable bilateral case, 260
Constant VSWR Circles, 260
DC Bias Networks, 273
BIT Bias Networks, 273
GaAs FET Bias Networks, 280
Problems.
283