![](http://datasheet.mmic.net.cn/80000/AT-31011-TR2G_datasheet_2673113/AT-31011-TR2G_5.png)
5
AT-31011 Typical Noise Parameters,
Common Emitter, ZO = 50 , 1 V, IC = 1 mA
ΓOPT
Freq
Fmin[1]
Rn
GHz
dB
Mag
Ang
0.5[2]
0.5
0.90
13
0.85
0.9
0.6
0.85
29
0.73
1.8
1.1
0.68
67
0.46
2.4
1.6
0.55
98
0.28
Notes:
1. Matching constraints may make Fmin values associated with high |ΓOPT| values unachievable
in physical circuits. See Figure 2 for expected performance.
2. 0.5 GHz noise parameter values are extrapolated, not measured.
AT-31033 Typical Noise Parameters,
Common Emitter, ZO = 50 , 1 V, IC = 1 mA
ΓOPT
Freq
Fmin[1]
Rn
GHz
dB
Mag
Ang
0.5[2]
0.5
0.90
12
0.70
0.9
0.6
0.82
28
0.60
1.8
1.1
0.57
68
0.38
2.4
1.6
0.41
100
0.22
Notes:
1. Matching constraints may make Fmin values associated with high |ΓOPT| values unachievable
in physical circuits. See Figure 2 for expected performance.
2. 0.5 GHz noise parameter values are extrapolated, not measured.
AT-31033 Typical Scattering Parameters, VCE = 1 V, IC = 1 mA, Common Emitter, ZO = 50
Freq.
S11
S21
S12
S22
GHz
Mag
Ang
dB
Mag
Ang
dB
Mag
Ang
Mag
Ang
0.1
0.94
-7
11.16
3.61
173
-35.95
0.02
85
0.999
-3
0.5
0.87
-34
10.37
3.30
144
-22.84
0.07
68
0.92
-17
0.9
0.70
-58
9.17
2.87
121
-19.06
0.11
56
0.85
-27
1.0
0.66
-64
8.69
2.72
115
-18.49
0.12
53
0.83
-29
1.5
0.46
-90
7.11
2.27
92
-16.94
0.14
45
0.74
-37
1.8
0.36
-106
6.16
2.03
81
-16.40
0.15
43
0.70
-40
2.0
0.31
-117
5.66
1.92
74
-16.06
0.16
42
0.68
-42
2.4
0.22
-143
4.48
1.67
62
-15.50
0.17
42
0.66
-45
3.0
0.16
166
3.19
1.44
46
-14.34
0.19
44
0.63
-50
4.0
0.23
101
1.39
1.17
25
-11.85
0.26
46
0.60
-62
5.0
0.33
67
0.05
1.01
9
-9.11
0.35
41
0.56
-77
AT-31011 Typical Scattering Parameters, VCE = 1 V, IC = 1 mA, Common Emitter, ZO = 50
Freq.
S11
S21
S12
S22
GHz
Mag
Ang
dB
Mag
Ang
dB
Mag
Ang
Mag
Ang
0.1
0.95
-8
11.12
3.60
174
-37.91
0.01
85
0.999
-3
0.5
0.92
-34
10.58
3.38
150
-24.67
0.06
68
0.94
-15
0.9
0.81
-60
9.74
3.07
130
-20.67
0.09
53
0.89
-25
1.0
0.79
-66
9.33
2.93
125
-20.03
0.10
50
0.88
-27
1.5
0.66
-94
8.02
2.52
104
-18.34
0.12
36
0.80
-36
1.8
0.60
-110
7.18
2.28
93
-17.95
0.13
30
0.76
-40
2.0
0.57
-119
6.76
2.18
87
-17.73
0.13
27
0.74
-42
2.4
0.51
-139
5.56
1.90
74
-17.69
0.13
22
0.71
-46
3.0
0.45
-167
4.22
1.63
57
-17.95
0.13
19
0.67
-51
4.0
0.45
153
2.30
1.30
36
-18.33
0.12
22
0.64
-62
5.0
0.49
120
0.73
1.09
17
-17.33
0.14
32
0.62
-72
AT-31011 fig 17
GAIN
(dB)
0
FREQUENCY (GHz)
2
3
30
1
5
10
4
20
MSG
MAG
S21
Figure 17. AT-31011 Gains vs. Frequency at VCE = 1 V,
IC = 1 mA.
AT-31011 fig 18
GAIN
(dB)
0
FREQUENCY (GHz)
2
3
30
1
5
10
4
20
MSG
MAG
S21
MSG
Figure 18. AT-31033 Gains vs. Frequency at VCE = 1 V,
IC = 1 mA.