ATF-511P8 Typical Scattering Parameters, VDS = 4.5V, IDS = 300 mA
Freq.
S11
GHz
Mag. Ang.
0.1
0.94 -134.9
0.2
0.93 -157.7
0.3
0.93 -166.6
0.4
0.93 -171.8
0.5
0.92 -173.9
0.6
0.93 -176.9
0.7
0.92 -178.8
0.8
0.93 178.7
0.9
0.92 177.1
1
0.93 175.7
1.5
0.93 168.7
2
0.93 163.0
2.5
0.92 157.8
3
0.92 152.5
4
0.92 142.8
5
0.91 133.2
6
0.91 124.6
7
0.91 115.7
8
0.91 106.0
9
0.91 95.5
10
0.90 85.2
11
0.89 74.3
12
0.89 63.0
13
0.89 54.1
14
0.90 46.3
15
0.90 40.6
16
0.89 33.3
17
0.83 25.4
18
0.86 20.0
S21
dB Mag. Ang.
31.16 36.15 111.2
25.64 19.14 99.2
22.26 12.97 94.2
19.78 9.74 90.9
18.70 8.60 88.9
17.12 7.18 86.1
15.78 6.15 84.3
14.61 5.37 82.3
13.58 4.77 80.6
12.64 4.28 79.1
8.99 2.81 71.4
6.36 2.08 64.2
4.40 1.66 57.2
2.73 1.36 50.4
0.03 1.00 37.6
-2.17 0.77 24.2
-4.21 0.61 14.1
-5.80 0.51 5.6
-6.82 0.45 -2.6
-7.36 0.42 -10.2
-7.98 0.40 -22.2
-8.69 0.38 -29.1
-9.25 0.35 -40.1
-9.80 0.32 -51.7
-10.25 0.31 -55.2
-10.86 0.30 -57.3
-11.16 0.32 -71.1
-11.81 0.24 -75.3
-12.07 0.24 -90.5
S12
dB Mag. Ang.
-38.53 0.01 29.7
-37.87 0.01 21.8
-37.61 0.01 21.1
-37.09 0.01 23.4
-36.15 0.01 25.4
-35.80 0.01 27.0
-35.41 0.01 29.5
-35.11 0.01 32.5
-35.00 0.01 33.1
-34.46 0.01 35.0
-32.70 0.02 40.0
-31.27 0.02 42.3
-29.90 0.03 42.5
-28.59 0.03 41.6
-26.69 0.04 35.7
-25.30 0.05 29.8
-24.32 0.06 23.7
-23.48 0.06 19.5
-22.49 0.07 14.1
-21.39 0.08 8.5
-20.50 0.09 0.4
-19.72 0.10 -8.4
-19.42 0.10 -17.1
-19.12 0.11 -23.9
-18.65 0.11 -29.7
-18.57 0.11 -35.8
-18.02 0.12 -42.3
-17.65 0.13 -47.1
-17.43 0.13 -53.1
S22
Mag. Ang.
0.73 -164.5
0.76 -173.7
0.78 -176.8
0.78 -179.9
0.75 178.9
0.75 176.9
0.75 175.5
0.76 174.0
0.75 172.8
0.76 171.6
0.76 166.0
0.76 160.6
0.76 155.5
0.75 149.7
0.74 138.6
0.71 127.2
0.65 117.2
0.59 111.3
0.56 108.2
0.58 103.7
0.60 96.0
0.63 87.2
0.65 77.6
0.67 68.2
0.69 58.7
0.69 50.1
0.71 41.8
0.73 35.1
0.76 27.7
MSG/MAG
dB
34.79
31.68
29.99
28.43
27.31
26.52
25.59
24.75
24.24
23.53
20.88
17.20
14.71
12.65
9.96
7.23
4.97
3.02
1.86
1.19
0.53
-0.04
-0.61
-1.04
-1.13
-1.88
-2.26
-3.17
-3.76
40
30
MSG
20
10
MAG
0
S21
-10
-20
0
5
10
15
FREQUENCY (GHz)
Figure 32. MSG/MAG & |S21|2 (dB) @
4.5V, 300 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
8