6
AT-31011 Typical Scattering Parameters, V
CE
= 2.7 V, I
C
= 1 mA, Common Emitter, Z
O
= 50 Ω
Freq. S
11
S
21
S
12
S
22
GHz Mag Ang dB Mag Ang dB Mag Ang Mag Ang
0.1 0.96 -7 11.11 3.59 174 -39.92 0.01 86 0.999 -2
0.5 0.93 -32 10.66 3.41 152 -26.43 0.05 69 0.95 -13
0.9 0.83 -56 9.90 3.13 132 -22.32 0.08 55 0.91 -22
1.0 0.81 -61 9.53 2.99 128 -21.66 0.08 53 0.90 -24
1.5 0.68 -89 8.32 2.61 107 -19.90 0.10 40 0.84 -32
1.8 0.62 -104 7.52 2.38 96 -19.46 0.11 34 0.80 -36
2.0 0.58 -113 7.15 2.28 90 -19.24 0.11 31 0.78 -38
2.4 0.52 -133 5.98 1.99 77 -19.15 0.11 27 0.75 -42
3.0 0.45 -160 4.65 1.71 61 -19.37 0.11 25 0.72 -46
4.0 0.43 158 2.75 1.37 39 -19.60 0.10 29 0.69 -56
5.0 0.46 123 1.16 1.14 20 -18.16 0.12 41 0.68 -66
AT-31011 Typical Noise Parameters,
Common Emitter, Z
O
= 50 Ω, 2.7 V, I
C
= 1 mA
Γ
OPT
Freq F
min
[1]
R
n
GHz dB Mag Ang
0.5
[2]
0.5 0.92 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 F
min
values associated with high |Γ
OPT
| 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, V
CE
= 2.7 V, I
C
= 1 mA, Common Emitter, Z
O
= 50 Ω
Freq. S
11
S
21
S
12
S
22
GHz Mag Ang dB Mag Ang dB Mag Ang Mag Ang
0.1 0.94 -7 11.07 3.58 173 -37.44 0.01 86 0.999 -3
0.5 0.89 -32 10.35 3.29 146 -24.11 0.06 70 0.94 -15
0.9 0.72 -54 9.27 2.91 123 -20.27 0.10 58 0.87 -25
1.0 0.69 -59 8.80 2.76 118 -19.65 0.10 56 0.86 -26
1.5 0.48 -83 7.32 2.32 95 -18.01 0.13 48 0.78 -33
1.8 0.38 -97 6.39 2.09 84 -17.43 0.13 46 0.74 -36
2.0 0.33 -107 5.91 1.97 77 -17.07 0.14 45 0.72 -38
2.4 0.23 -130 4.73 1.72 65 -16.46 0.15 46 0.70 -41
3.0 0.14 -178 3.43 1.48 49 -15.25 0.17 48 0.67 -46
4.0 0.19 103 1.62 1.21 28 -12.62 0.23 51 0.65 -57
5.0 0.30 67 0.25 1.03 12 -9.72 0.33 47 0.63 -71
AT-31033 Typical Noise Parameters,
Common Emitter, Z
O
= 50 Ω, 2.7 V, I
C
= 1 mA
Γ
OPT
Freq F
min
[1]
R
n
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 F
min
values associated with high |Γ
OPT
| values unachievable
in physical circuits. See Figure 2 for expected performance.
2. 0.5 GHz noise parameter values are extrapolated, not measured.
AT-31011 fig 19
GAIN (dB)
0
0
FREQUENCY (GHz)
2 3
30
1 5
10
4
20
MSG
MAG
S21
Figure 19. AT-31011 Gains vs. Frequency at V
CE
= 2.7
V, I
C
= 1 mA.
AT-31011 fig 20
GAIN (dB)
0
0
FREQUENCY (GHz)
2 3
30
1 5
10
4
20
MSG
MAG
S21
MSG
Figure 20. AT-31033 Gains vs. Frequency at V
CE
= 2.7
V, I
C
= 1 mA.