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MMIC Design LecturesV-2HO

资料介绍
V-2HOV-2. Unilateral Amplifier
(1) Unilateral Amplifier Gain-(1)
Unilateral : S12 = 0
ΓIN = S11 + S12 S 21ΓL = S11 1 S 22ΓL S12 S 21ΓS = S 22 1 S11ΓS

Three Independent Gain Terms
(26) (27)

GTU = GSG0GL
GS = 1 Γs
2 2 2 2 2

(29) (30) Degree of matching or (31) (32) Degree of matching or
mismatching btn ΓL and S22

ΓOUT = S 22 +

1 S11Γs 1 ΓL

mismatching btn ΓS and S11

G0 = S21 GL =

1 S22ΓL

Unilateral Transducer Power Gain, GTU

GTU =

1 Γs

2 2

1 S11Γs

S21

2

1 ΓL

2 2

1 S22ΓL

(28)

ICE651 MMIC Design

V-2-1

V-2. Unilateral Amplifier
(1) Unilateral Amplifier Gain-(2)
Maximum Unilateral Transducer Power Gain, GTU,max for unconditionally stable case

Then

GTU,max = GPU,max = GAU,max
cf
GP =
GA =

(38)
2

ΓS = S11

* *

(33) (34) (35)

1 1 ΓIN 2 1 ΓS
1 S11ΓS
2

ΓL = S22
GS,m……
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MMIC Design LecturesV-2HO
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