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AT-31011 Datasheet, PDF (7/10 Pages) Agilent(Hewlett-Packard) – Low Current, High Performance NPN Silicon Bipolar Transistor
AT-31011 Typical Scattering Parameters, VCE = 2.7 V, IC = 10 mA, Common Emitter, ZO = 50 Ω
Freq.      S11
GHz
Mag Ang
dB
S21
Mag Ang
dB
S12      S22
Mag
Ang
Mag Ang
0.1
0.74 -23
27.42 23.49 161
-41.00
0.01
77
0.95 -9
0.5
0.46 -85
22.65 13.57 116
-30.64
0.03
59
0.68 -24
0.9
0.32 -121
18.73 8.64 97
-27.55
0.04
59
0.59 -27
1.0
0.30 -128
17.91 7.86 93
-27.05
0.04
59
0.58 -27
1.5
0.25 -161
14.77 5.48 79
-24.48
0.06
61
0.55 -30
1.8
0.25 -177
13.29 4.62 72
-23.26
0.07
61
0.54 -32
2.0
0.24 174
12.42 4.18 68
-22.51
0.07
61
0.53 -33
2.4
0.25 157
10.97 3.54 60
-21.12
0.09
59
0.53 -36
3.0
0.27 138
9.11 2.86 49
-19.31
0.11
58
0.52 -40
4.0
0.31 113
6.86 2.20 33
-16.88
0.14
54
0.51 -50
5.0
0.37 94
5.19 1.82 17
-14.75
0.18
48
0.50 -59
30
AT-31011 Typical Noise Parameters,
Common Emitter, ZO = 50 Ω, 2.7 V, IC = 10 mA
              ΓOPT
Freq
Fmin[1]
Rn
GHz
dB
Mag
Ang
0.5[2]
1.3
0.45
11
0.55
0.9
1.4
0.37
33
0.46
1.8
1.7
0.25
86
0.29
2.4
2.0
0.18
129
0.18
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.
MSG
20
MAG
10
S21
MSG
0
0
1
2
3
4
5
FREQUENCY (GHz)
Figure 21. AT-31011 Gains vs. Frequency at Vce = 2.7
V, Ic = 10 mA.
AT-31033 Typical Scattering Parameters, VCE = 2.7 V, IC = 10 mA, Common Emitter, ZO = 50 Ω AT-31011 fig 21
Freq.      S11
GHz
Mag Ang
dB
S21
Mag Ang
dB
S12      S22
Mag
Ang
Mag Ang
0.1
0.72 -21
26.80 21.87 154
-38.46
0.01
80
0.92 -10
0.5
0.33 -49
19.93 9.92 106
-27.31
0.04
73
0.66 -20
0.9
0.19 -47
15.51 5.96 88
-22.90
0.07
72
0.61 -22
1.0
0.17 -46
14.66 5.41 85
-22.03
0.08
72
0.60 -23
1.5
0.11 -28
11.44 3.73 72
-18.74
0.12
69
0.59 -27
1.8
0.10 -14
9.99 3.16 66
-17.26
0.14
67
0.58 -30
2.0
0.10 -6
9.15 2.87 62
-16.40
0.15
65
0.58 -32
2.4
0.10 9
7.78 2.45 54
-14.88
0.18
62
0.57 -35
3.0
0.12 23
6.16 2.03 43
-12.99
0.22
57
0.55 -41
4.0
0.15 34
4.30 1.64 27
-10.49
0.30
48
0.52 -53
5.0
0.20 36
3.01 1.41 12
-8.53
0.37
38
0.48 -65
AT-31033 Typical Noise Parameters,
Common Emitter, ZO = 50 Ω, 2.7 V, IC = 10 mA
              ΓOPT
Freq
Fmin[1]
Rn
GHz
dB
Mag
Ang
0.5[2]
1.3
0.42
10
0.38
0.9
1.4
0.31
30
0.34
1.8
1.7
0.16
80
0.23
2.4
2.0
0.08
118
0.17
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.

30
MSG
MAG
20
MSG
MAG
10
S21
MSG
0
0
1
2
3
4
5
FREQUENCY (GHz)
Figure 22. AT-31033 Gains vs. Frequency at Vce = 2.7
V, Ic = 10 mA.
AT-31011 fig 22