ATF-501P8 Typical Scattering Parameters, VDS = 4.5V, IDS = 200 mA
Freq.
GHz
S11
Mag. Ang.
S21
dB Mag. Ang.
S12
dB Mag. Ang.
0.1
0.922 -131.5
31.1 35.978 112.6
-37.7 0.013 28.9
0.2
0.914 -155.7
25.7 19.290 100.1
-36.5 0.015 22.4
0.3
0.914 -165.2
22.3 13.088 94.7
-36.5 0.015 22.5
0.4
0.911 -170.5
19.8 9.814 91.4
-35.9 0.016 24.9
0.5
0.911 -173.3
18.3 8.176 88.6
-35.4 0.017 26.8
0.6
0.912 -176.0
16.7 6.834 86.4
-34.9 0.018 29.3
0.7
0.910 -178.3
15.4 5.861 84.3
-34.4 0.019 31.3
0.8
0.910 179.9
14.2 5.141 82.3
-34.4 0.019 33.0
0.9
0.913 178.4
13.2 4.558 80.5
-34.0 0.020 34.9
1
0.910 176.8
12.2 4.092 78.7
-33.6 0.021 36.6
1.5
0.904 170.5
8.7 2.718 70.5
-31.4 0.027 41.7
2
0.905 166.1
6.7 2.153 64.9
-30.2 0.031 44.2
2.5
0.905 165.2
6.1 2.027 63.7
-29.9 0.032 44.5
3
0.906 161.1
4.5 1.684 58.3
-28.6 0.037 44.9
4
0.905 154.9
2.6 1.354 50.3
-27.1 0.044 44.3
5
0.904 145.1
0.4 1.053 38.5
-24.7 0.058 41.6
6
0.899 134.9
-1.3 0.863 23.9
-22.9 0.072 34.1
7
0.905 126.0
-3.6 0.661 10.5
-22.2 0.078 26.0
8
0.902 115.8
-4.6 0.587 0.3
-20.8 0.091 20.8
9
0.900 106.4
-5.6 0.527 -11.1
-19.6 0.105 11.1
10
0.894 95.9
-6.1 0.498 -17.7
-18.9 0.114 8.4
11
0.882 84.9
-7.0 0.448 -26.8
-17.7 0.130 -0.9
12
0.873 74.3
-8.1 0.393 -38.8
-17.5 0.133 -7.5
13
0.856 64.6
-8.1 0.393 -45.4
-16.1 0.156 -13.1
14
0.853 56.0
-8.4 0.380 -55.0
-15.6 0.166 -21.4
15
0.837 47.4
-8.8 0.361 -64.1
-14.8 0.182 -29.6
16
0.829 40.6
-9.2 0.345 -72.0
-14.4 0.190 -35.9
17
0.828 32.7
-9.5 0.336 -80.5
-13.4 0.213 -43.3
18
0.807 26.1
-10.2 0.310 -88.2
-12.5 0.236 -50.5
S22
Mag. Ang.
0.664
0.709
0.719
0.722
0.713
0.713
0.716
0.718
0.712
0.714
0.721
0.721
0.719
0.715
0.725
0.716
0.712
0.660
0.654
0.649
0.700
0.746
0.738
0.768
0.800
0.799
0.763
0.787
0.782
-159.8
-170.7
-175.4
-178.4
-179.9
178.6
177.2
175.5
175.0
173.8
169.0
165.2
162.5
158.5
152.9
145.7
144.1
132.9
116.3
114.4
103.4
90.5
87.3
77.8
68.4
65.2
51.1
38.5
29.1
MSG/MAG K
dB
factor
34.4
0.142
31.1
0.274
29.4
0.390
27.9
0.510
26.8
0.577
25.8
0.653
24.9
0.725
24.3
0.801
23.6
0.840
22.9
0.903
18.3
1.077
16.0
1.161
15.4
1.188
13.7
1.227
11.8
1.262
9.5
1.271
7.7
1.263
5.6
1.371
4.2
1.423
3.0
1.451
2.6
1.412
1.6
1.407
0.1
1.614
-0.1
1.492
-0.2
1.399
-1.0
1.439
-1.8
1.556
-2.0
1.449
-3.2
1.542
40
Notes:
1. S parameter is measured on a microstrip line
30
S21
made on 0.025 inch thick alumina carrier. The
MSG
MAG
input reference plane is at the end of the gate
20
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 57. MSG/MAG & |S21|2 vs. Frequency
at 4.5V 200mA.
12