![](http://datasheet.mmic.net.cn/80000/AT-30511-TR2G_datasheet_2673107/AT-30511-TR2G_7.png)
7
AT-30511 Typical Scattering Parameters, VCE = 2.7 V, IC = 5 mA, Common Emitter, ZO = 50 Ω
Freq.
S11
S21
S12
S22
GHz
Mag
Ang
dB
Mag
Ang
dB
Mag
Ang
Mag
Ang
0.1
0.88
-11
22.49
13.32
169
-40.50
0.01
83
0.97
-5
0.5
0.70
-48
20.42
10.49
134
-28.45
0.04
64
0.82
-22
0.9
0.49
-72
17.77
7.73
111
-25.24
0.05
57
0.70
-30
1.0
0.46
-77
17.09
7.15
107
-24.70
0.06
55
0.69
-31
1.5
0.30
-100
14.44
5.27
89
-22.62
0.07
53
0.62
-35
1.8
0.24
-112
13.10
4.52
81
-21.65
0.08
52
0.59
-37
2.0
0.21
-120
12.31
4.13
76
-21.05
0.09
52
0.58
-39
2.4
0.16
-140
10.94
3.52
67
-20.01
0.10
50
0.57
-42
3.0
0.13
-172
9.18
2.88
55
-18.55
0.12
48
0.55
-46
4.0
0.15
137
7.03
2.25
38
-16.57
0.15
44
0.53
-55
5.0
0.21
106
5.44
1.87
22
-14.88
0.18
39
0.52
-64
AT-30533 Typical Scattering Parameters, VCE = 2.7 V, IC = 5 mA, Common Emitter, ZO = 50 Ω
Freq.
S11
S21
S12
S22
GHz
Mag
Ang
dB
Mag
Ang
dB
Mag
Ang
Mag
Ang
0.1
0.84
-12
22.26
12.98
164
-39.96
0.01
82
0.98
-5
0.5
0.57
-39
18.54
8.46
121
-28.03
0.04
71
0.80
-18
0.9
0.37
-46
14.97
5.60
100
-24.09
0.06
70
0.73
-22
1.0
0.34
-46
14.20
5.13
96
-23.32
0.07
69
0.72
-22
1.5
0.23
-43
11.24
3.65
81
-20.30
0.10
68
0.69
-26
1.8
0.20
-38
9.85
3.11
73
-18.88
0.11
67
0.68
-28
2.0
0.19
-35
9.05
2.84
69
-18.02
0.13
66
0.68
-30
2.4
0.17
-27
7.70
2.43
61
-16.50
0.15
64
0.67
-33
3.0
0.15
-17
6.12
2.02
50
-14.57
0.19
61
0.66
-39
4.0
0.15
-2
4.30
1.64
34
-11.90
0.25
55
0.64
-49
5.0
0.17
11
3.07
1.42
19
-9.66
0.33
47
0.61
-61
AT-30511 Typical Noise Parameters,
Common Emitter, ZO = 50 Ω, 2.7 V, IC = 5 mA
ΓOPT
Freq
Fmin[1]
Rn
GHz
dB
Mag
Ang
0.5[2]
1.1
0.77
9
1.10
0.9
1.2
0.71
18
0.96
1.8
1.5
0.60
45
0.66
2.4
1.8
0.51
65
0.47
Notes:
1. Matching constraints may make Fmin values associated with high |Γopt| values unachievable
in physical circuits. See Fig. 2 for expected performance.
2. 0.5 GHz noise parameter values are extrapolated, not measured.
AT-30533 Typical Noise Parameters,
Common Emitter, ZO = 50 Ω, 2.7 V, IC = 5 mA
ΓOPT
Freq
Fmin[1]
Rn
GHz
dB
Mag
Ang
0.5[2]
1.1
0.71
8
0.78
0.9
1.2
0.61
16
0.66
1.8
1.5
0.42
39
0.41
2.4
1.8
0.28
57
0.25
Notes:
1. Matching constraints may make Fmin values associated with high |Γopt| values unachievable
in physical circuits. See Fig. 2 for expected performance.
2. 0.5 GHz noise parameter values are extrapolated, not measured.
AT-30511 fig 22
GAIN
(dB)
0
FREQUENCY (GHz)
2
3
30
1
5
10
4
20
MSG
MAG
S21
MSG
Figure 22. AT-30533 Gains vs. Frequency at VCE = 2.7
V, IC = 5 mA.
Figure 21. AT-30511 Gains vs. Frequency at VCE = 2.7
V, IC = 5 mA.
AT-30511 fig 21
GAIN
(dB)
0
FREQUENCY (GHz)
2
3
30
1
5
10
4
20
MSG
MAG
S21