ATF-511P8 Typical Scattering Parameters, VDS = 4V, IDS = 200 mA
Freq.
GHz
S11
Mag. Ang.
S21
dB Mag. Ang.
dB
S12
Mag.
0.1
0.94
-133.7
0.2
0.93
-156.9
0.3
0.93
-165.9
0.4
0.94
-170.9
0.5
0.93
-174.5
0.6
0.93
-175.8
0.7
0.93
-178.2
0.8
0.92
179.7
0.9
0.92
178.0
1
0.93
176.3
1.5
0.92
169.6
2
0.93
164.4
2.5
0.92
159.6
3
0.92
154.2
4
0.92
144.9
5
0.91
135.5
6
0.92
126.6
7
0.91
117.1
8
0.91
108.2
9
0.90
99.1
10
0.92
89.2
11
0.90
79.6
12
0.91
70.9
13
0.90
62.2
14
0.94
53.8
15
0.87
45.0
16
0.89
37.7
17
0.89
30.5
18
0.88
25.4
30.85
25.31
21.89
19.48
17.53
16.77
15.53
14.28
13.21
12.34
8.63
6.12
4.07
2.30
-0.31
-2.55
-4.30
-5.64
-6.81
-7.13
-7.76
-8.39
-8.92
-9.42
-9.84
-10.51
-10.74
-10.03
-11.77
34.87
18.41
12.43
9.42
7.52
6.89
5.97
5.17
4.57
4.13
2.70
2.02
1.59
1.30
0.96
0.74
0.60
0.52
0.45
0.44
0.40
0.38
0.35
0.33
0.32
0.29
0.29
0.31
0.25
111.4
99.5
94.2
90.9
88.8
86.0
84.2
82.5
80.5
78.6
71.0
63.5
57.0
50.3
37.4
25.4
15.1
6.50
-2.8
-13.7
-21.2
-30.0
-42.9
-48.9
-60.1
-68.5
-72.4
-85.1
-91.8
-37.28 0.01
-36.61 0.01
-36.19 0.01
-35.98 0.01
-35.84 0.01
-34.69 0.01
-34.42 0.01
-34.11 0.02
-33.77 0.02
-33.66 0.02
-32.21 0.02
-30.69 0.02
-29.46 0.03
-28.47 0.03
-26.48 0.04
-25.14 0.05
-24.15 0.06
-23.20 0.06
-22.06 0.07
-21.10 0.08
-20.40 0.09
-19.67 0.10
-19.28 0.10
-19.11 0.11
-18.86 0.11
-18.58 0.11
-18.59 0.11
-17.88 0.12
-17.72 0.13
Ang.
28.2
20.4
20.2
20.4
23.0
23.5
25.0
27.1
29.2
29.6
34.5
38.0
39.4
37.7
33.8
28.4
23.4
18.3
12.3
5.2
-2.7
-11.0
-19.9
-27.2
-33.1
-38.4
-43.7
-48.3
-59.0
S22
Mag. Ang.
0.73 -162.5
0.76 -172.6
0.78 -176.3
0.78 -179.5
0.78 178.5
0.76 177.3
0.75 175.5
0.76 173.9
0.76 172.5
0.76 171.4
0.76 165.3
0.76 159.2
0.76 154.1
0.75 148.6
0.73 137.1
0.69 127.3
0.64 119.4
0.62 114.5
0.62 108.5
0.62 100.8
0.64 90.4
0.65 79.3
0.66 67.0
0.67 57.1
0.68 48.7
0.7
40.0
0.71 36.3
0.73 28.8
0.74 19.5
MSG/MAG
dB
33.96
30.89
28.90
27.70
26.73
25.83
24.98
24.13
23.60
22.95
20.34
17.32
14.52
12.34
9.75
6.74
5.17
3.27
2.03
1.60
1.40
0.26
0.15
-0.69
-1.20
-1.56
-1.97
-2.50
-2.82
40
30
MSG
20
10
0
S21
-10
MAG
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
0
5
10
15
20
FREQUENCY (GHz)
Figure 35. MSG/MAG & |S21|2 (dB)
@ 4V, 200 mA.
11