ATF-511P8 Typical Scattering Parameters, VDS = 4.5V, IDS = 200 mA
Freq.
S11
GHz
Mag. Ang.
0.1
0.94 -132.6
0.2
0.93 -156.3
0.3
0.94 -165.6
0.4
0.93 -170.8
0.5
0.92 -173.1
0.6
0.92 -176.2
0.7
0.92 -178.2
0.8
0.92 179.4
0.9
0.93 177.4
1
0.92 176.0
1.5
0.93 168.9
2
0.93 163.6
2.5
0.92 157.9
3
0.93 152.6
4
0.91 143.1
5
0.91 133.7
6
0.91 124.7
7
0.90 115.7
8
0.90 105.6
9
0.91 95.7
10
0.91 84.9
11
0.89 74.0
12
0.89 63.1
13
0.89 54.0
14
0.90 46.4
15
0.90 38.8
16
0.91 33.1
17
0.85 26.8
18
0.87 19.3
S21
dB Mag.
31.26 36.54
25.79 19.47
22.40 13.18
19.93 9.92
18.84 8.75
17.26 7.29
15.92 6.25
14.76 5.47
13.72 4.85
12.77 4.34
9.13 2.86
6.49 2.11
4.50 1.67
2.81 1.38
0.16 1.01
-2.08 0.78
-4.02 0.62
-5.75 0.51
-6.77 0.45
-7.45 0.42
-7.95 0.40
-8.29 0.38
-9.19 0.34
-9.74 0.326
-10.17 0.31
-10.85 0.28
-10.77 0.28
-11.05 0.28
-11.53 0.26
Ang.
112.1
99.6
94.4
91.1
89.0
86.2
84.3
82.3
80.4
79.1
70.9
63.7
56.8
49.3
35.8
22.7
12.0
3.3
-3.9
-12.1
-22.4
-32.0
-39.5
-51.1
-58.1
-67.8
-73.7
-83.3
-100.4
S12
dB Mag. Ang.
-37.40 0.01 27.2
-36.68 0.01 19.2
-36.47 0.01 19.9
-36.17 0.01 19.9
-35.11 0.01 24.6
-34.84 0.01 23.9
-34.72 0.01 25.6
-34.37 0.01 27.6
-34.02 0.02 28.6
-33.71 0.02 30.8
-32.20 0.02 35.0
-30.97 0.02 38.2
-29.65 0.03 39.1
-28.54 0.03 38.1
-26.68 0.04 33.9
-25.40 0.05 28.0
-24.42 0.06 22.3
-23.61 0.06 18.2
-22.73 0.07 14.4
-21.60 0.08 8.4
-20.76 0.09 0.9
-19.93 0.10 -8.6
-19.45 0.10 -16.8
-19.03 0.11 -24.1
-18.78 0.11 -30.7
-18.47 0.11 -36.1
-18.19 0.12 -42.9
-17.88 0.12 -47.5
-17.54 0.13 -53.8
40
30
MSG
20
10
MAG
0
S21
-10
-20
0
5
10
15
FREQUENCY (GHz)
Figure 33. MSG/MAG & |S21|2 (dB) @
4.5V, 200 mA.
Notes:
1. S parameter is measured on a microstrip
line made on 0.025 inch thick alumina
carrier. The input reference plane is at the
end of the gate lead. The output reference
plane is at the end of the drain lead.
20
S22
Mag. Ang.
0.70 -161.0
0.74 -171.6
0.76 -175.6
0.76 -178.8
0.73 179.9
0.73 177.8
0.73 176.2
0.74 174.7
0.74 173.4
0.74 172.2
0.74 166.5
0.74 161.1
0.74 155.9
0.74 150.2
0.73 139.0
0.70 127.4
0.65 117.0
0.58 110.2
0.54 107.5
0.55 103.9
0.58 97.0
0.61 88.4
0.64 78.9
0.67 69.1
0.68 59.6
0.68 50.9
0.71 42.0
0.73 35.3
0.75 27.3
MSG/MAG
dB
34.49
31.13
29.44
27.93
26.87
26.08
25.41
24.59
23.85
23.16
20.59
17.50
14.78
13.16
9.84
7.34
5.01
2.77
1.56
1.13
0.82
-0.05
-0.82
-1.38
-1.33
-1.80
-2.11
-2.60
-2.83
9