HSG2004
Rev.4.00 Jun 21, 2006 page 3 of 12
0
5
10
15
20
25
Collector Current I
C
(mA)

Maximum Stable Gain MSG (dB)

Maximum Available Gain MAG (dB)

Maximum Stable Gain, Maximum Available Gain

vs. Collector Current

30
1 10 100 1000
20
0
0.1 1 10

Frequency f (GHz)

30
40
10

S

21

Parameter, Maximum Available Gain,

Maximum Stable Gain vs. Frequency

100
80
60
40
20
0 0.2 0.4 0.6 0.8 1.0

Base to Emitter Voltage V

BE

(V)

Collector Current I

C

(mA)

Typical Transfer Characteristics

200
0
1 10 100
Collector Current I
C

(mA)

DC Current Transfer Ratio h

FE

(-)

DC Current Transfer Ratio vs.

Collector Current

300
400
100

Reverse Transfer Capacitanse C

re

(pF)

Reverse Transfer Capacitanse vs.

Collector to Base Voltage

0.4
0.3
01234
0.5

Collector to Base Voltage V

CB

(V)

0.2
0.1
40
30
20
0
1 10 100 1000
Collector Current I
C

(mA)

Transition Frequency f

T

(GHz)

Transition Frequency vs.

Collector Current

10
I
E
= 0
f = 1 MHz
V
CE
= 3 V
I
C
= 30 mA
MSG
|S21|
2
MAG
VCE = 3 V
V
CE
= 3 V
VCE = 3 V
f = 1 GHz
f = 1 GHz
5.8 GHz
5.2 GHz
1.8 GHz
2.4 GHz
V
CE
= 3 V
MAG
MSG

S

21
Parameter |S
21
|
2

(dB)

Maximum Stable Gain MSG (dB)

Maximum Available Gain MAG (dB)