ATF-511P8 Typical Scattering Parameters, VDS = 4.5V, IDS = 300 mA
Freq.
GHz
S11
S21
Mag.
S12
Mag.
S22
MSG/MAG
dB
Mag.
Ang.
dB
Ang.
dB
Ang.
Mag. Ang.
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.5
2
2.5
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
0.94
0.93
0.93
0.93
0.92
0.93
0.92
0.93
0.92
0.93
0.93
0.93
0.92
0.92
0.92
0.91
0.91
0.91
0.91
0.91
0.90
0.89
0.89
0.89
0.90
0.90
0.89
0.83
0.86
-134.9
-157.7
-166.6
-171.8
-173.9
-176.9
-178.8
178.7
177.1
175.7
168.7
163.0
157.8
152.5
142.8
133.2
124.6
115.7
106.0
95.5
31.16 36.15
25.64 19.14
22.26 12.97
19.78 9.74
18.70 8.60
17.12 7.18
15.78 6.15
14.61 5.37
13.58 4.77
12.64 4.28
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
-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
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
0.73
0.76
0.78
0.78
0.75
0.75
0.75
0.76
0.75
0.76
0.76
0.76
0.76
0.75
0.74
0.71
0.65
0.59
0.56
0.58
0.60
0.63
0.65
0.67
0.69
0.69
0.71
0.73
0.76
-164.5
-173.7
-176.8
-179.9
178.9
176.9
175.5
174.0
172.8
171.6
166.0
160.6
155.5
149.7
138.6
127.2
117.2
111.3
108.2
103.7
96.0
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
8.99
6.36
4.40
2.73
0.03
2.81
2.08
1.66
1.36
1.00
-2.17 0.77
-4.21 0.61
-5.80 0.51
-6.82 0.45
-7.36 0.42
-7.98 0.40
-8.69 0.38
-9.25 0.35
-9.80 0.32
-10.25 0.31
-10.86 0.30
-11.16 0.32
-11.81 0.24
-12.07 0.24
-2.6
-10.2
-22.2
-29.1
-40.1
-51.7
-55.2
-57.3
-71.1
-75.3
-90.5
85.2
74.3
63.0
54.1
46.3
40.6
33.3
25.4
0.4
-8.4
87.2
77.6
68.2
58.7
50.1
41.8
35.1
27.7
-17.1
-23.9
-29.7
-35.8
-42.3
-47.1
-53.1
20.0
40
30
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.
MSG
20
10
MAG
0
S21
-10
-20
0
5
10
FREQUENCY (GHz)
15
20
Figure 32. MSG/MAG & |S21|2 (dB)
@ 4.5V, 300 mA.
8