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