ATF-511P8 Typical Scattering Parameters, VDS = 4.5V, IDS = 300 mA
Freq.
GHz
S11
Mag. Ang.
S21
dB Mag. Ang.
dB
S12
Mag.
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
31.16
25.64
22.26
19.78
18.70
17.12
15.78
14.61
13.58
12.64
8.99
6.36
4.40
2.73
0.03
-2.17
-4.21
-5.80
-6.82
-7.36
-7.98
-8.69
-9.25
-9.80
-10.25
-10.86
-11.16
-11.81
-12.07
36.15
19.14
12.97
9.74
8.60
7.18
6.15
5.37
4.77
4.28
2.81
2.08
1.66
1.36
1.00
0.77
0.61
0.51
0.45
0.42
0.40
0.38
0.35
0.32
0.31
0.30
0.32
0.24
0.24
111.2
99.2
94.2
90.9
88.9
86.1
84.3
82.3
80.6
79.1
71.4
64.2
57.2
50.4
37.6
24.2
14.1
5.6
-2.6
-10.2
-22.2
-29.1
-40.1
-51.7
-55.2
-57.3
-71.1
-75.3
-90.5
-38.53 0.01
-37.87 0.01
-37.61 0.01
-37.09 0.01
-36.15 0.01
-35.80 0.01
-35.41 0.01
-35.11 0.01
-35.00 0.01
-34.46 0.01
-32.70 0.02
-31.27 0.02
-29.90 0.03
-28.59 0.03
-26.69 0.04
-25.30 0.05
-24.32 0.06
-23.48 0.06
-22.49 0.07
-21.39 0.08
-20.50 0.09
-19.72 0.10
-19.42 0.10
-19.12 0.11
-18.65 0.11
-18.57 0.11
-18.02 0.12
-17.65 0.13
-17.43 0.13
Ang.
29.7
21.8
21.1
23.4
25.4
27.0
29.5
32.5
33.1
35.0
40.0
42.3
42.5
41.6
35.7
29.8
23.7
19.5
14.1
8.5
0.4
-8.4
-17.1
-23.9
-29.7
-35.8
-42.3
-47.1
-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
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 32. MSG/MAG & |S21|2 (dB)
@ 4.5V, 300 mA.
8