ATF-501P8 Typical Scattering Parameters, VDS = 4.5V, IDS = 280 mA
Freq. S11
S21
GHz
Mag. Ang.
dB Mag. Ang.
S12
dB Mag. Ang.
0.1
0.915 -132.3
31.6 37.990 112.2 -38.4 0.012 29.3
0.2
0.911 -156.2
26.2 20.324 99.9
-37.7 0.013 24.0
0.3
0.910 -165.4
22.8 13.783 94.5
-37.1 0.014 24.5
0.4
0.910 -170.9
20.3 10.342 91.1
-37.1 0.014 27.3
0.5
0.908 -173.4
18.7 8.604 88.4
-36.5 0.015 29.6
0.6
0.907 -176.1
17.1 7.194 86.1
-35.9 0.016 32.4
0.7
0.908 -178.5
15.8 6.167 84.1
-35.4 0.017 34.4
0.8
0.905 179.8
14.7 5.407 82.1
-34.9 0.018 36.3
0.9
0.909 178.2
13.6 4.799 80.3
-34.4 0.019 38.3
1
0.909 176.6
12.7 4.308 78.3
-34.0 0.020 39.9
1.5
0.902 170.5
9.1 2.859 70.3
-31.7 0.026 45.0
2
0.902 166.0
7.1 2.264 64.4
-30.5 0.030 46.9
2.5
0.901 165.0
6.6 2.134 63.1
-30.2 0.031 47.2
3
0.901 161.1
5.0 1.772 57.7
-28.9 0.036 47.4
4
0.898 155.0
3.0 1.412 49.3
-27.3 0.043 46.5
5
0.902 145.0
0.9 1.110 37.6
-24.7 0.058 43.5
6
0.893 134.9
-0.9 0.902 22.6
-22.9 0.072 35.6
7
0.899 125.8
-3.3 0.687 9.0
-22.2 0.078 27.3
8
0.895 115.6
-4.4 0.604 -1.1
-20.8 0.091 22.0
9
0.898 105.5
-5.3 0.542 -13.0
-19.6 0.105 12.3
10
0.886 95.5
-5.9 0.505 -20.2
-18.9 0.114 9.7
11
0.868 84.7
-6.6 0.469 -29.7
-17.6 0.132 0.5
12
0.862 74.0
-8.0 0.398 -40.8
-17.4 0.135 -6.3
13
0.847 64.5
-7.9 0.403 -47.5
-16.0 0.159 -12.3
14
0.844 55.6
-8.5 0.377 -58.4
-15.3 0.171 -21.3
15
0.837 47.4
-9.0 0.354 -67.2
-14.6 0.187 -30.1
16
0.824 39.9
-9.7 0.327 -72.0
-14.2 0.194 -36.8
17
0.821 31.6
-9.8 0.323 -82.7
-13.4 0.215 -44.6
18
0.805 24.6
-10.5 0.298 -90.1
-12.5 0.237 -51.8
S22
Mag. Ang.
0.647
0.689
0.699
0.702
0.691
0.691
0.694
0.695
0.692
0.692
0.698
0.700
0.699
0.697
0.707
0.699
0.697
0.652
0.646
0.641
0.695
0.742
0.735
0.766
0.800
0.797
0.763
0.786
0.781
-160.6
-171.1
-175.7
-178.5
-179.9
178.5
177.2
175.2
175.1
173.9
169.4
165.6
163.0
159.1
153.7
146.8
145.3
134.1
117.4
115.5
104.5
91.3
88.1
78.4
68.9
65.6
51.5
38.9
29.5
MSG/MAG
dB
35.0
31.9
29.9
28.7
27.6
26.5
25.6
24.8
24.0
23.3
18.2
16.0
15.4
13.8
11.7
9.7
7.8
5.7
4.2
3.2
2.5
1.6
-0.1
-0.1
-0.3
-1.1
-2.3
-2.4
-3.5
40
Notes:
1. S parameter is measured on a microstrip
30
S21
line made on 0.025 inch thick alumina
MSG
MAG
carrier. The input reference plane is at the
20
end of the gate lead. The output reference
plane is at the end of the drain lead.
10
0
-10
-20
0 2 4 6 8 10 12 14 16 18
FREQUENCY (GHz)
Figure 56. MSG/MAG & |S21|2 vs. Frequency at
4.5V 280mA.
K
factor
0.173
0.314
0.436
0.569
0.648
0.736
0.800
0.871
0.906
0.953
1.128
1.209
1.241
1.278
1.326
1.272
1.286
1.394
1.463
1.447
1.455
1.431
1.661
1.491
1.397
1.414
1.608
1.488
1.575
11