ATF-501P8 Typical Scattering Parameters, VDS = 3.5V, IDS = 200 mA
Freq.
GHz
S11
Mag. Ang.
S21
dB Mag. Ang.
S12
dB Mag. Ang.
0.1
0.924 -132.7
30.5 33.400 112.1
-37.1 0.014 28.4
0.2
0.919 -156.5
25.0 17.862 99.9
-36.5 0.015 22.1
0.3
0.918 -165.7
21.7 12.118 94.6
-36.5 0.015 22.7
0.4
0.918 -171.0
19.2 9.080 91.4
-35.9 0.016 24.6
0.5
0.918 -173.6
17.6 7.556 88.7
-35.4 0.017 26.4
0.6
0.915 -176.2
16.0 6.328 86.5
-34.9 0.018 29.3
0.7
0.915 -178.5
14.7 5.422 84.5
-34.4 0.019 31.3
0.8
0.914 179.8
13.5 4.739 82.7
-34.0 0.020 33.2
0.9
0.919 178.0
12.5 4.232 80.8
-33.6 0.021 35.1
1
0.916 176.7
11.6 3.788 79.0
-33.2 0.022 36.7
1.5
0.912 170.5
8.0 2.515 71.5
-31.4 0.027 42.0
1.9
0.911 166.0
6.0 1.991 65.8
-29.9 0.032 44.3
2
0.910 164.9
5.5 1.882 64.7
-29.6 0.033 44.7
2.4
0.911 160.9
3.9 1.562 59.7
-28.6 0.037 45.0
3
0.909 154.7
2.0 1.255 51.5
-26.9 0.045 43.9
4
0.911 144.8
-0.1 0.988 40.4
-24.4 0.060 41.0
5
0.902 134.8
-1.8 0.813 25.9
-22.6 0.074 33.3
6
0.904 125.5
-4.1 0.624 12.7
-22.0 0.079 24.6
7
0.904 115.6
-5.1 0.555 3.9
-20.6 0.093 19.3
8
0.901 105.6
-5.9 0.509 -8.3
-19.4 0.107 9.5
9
0.897 95.4
-6.4 0.477 -14.5
-18.8 0.115 6.6
10
0.880 84.1
-6.9 0.450 -23.9
-17.7 0.130 -3.0
11
0.872 73.7
-8.1 0.393 -34.0
-17.6 0.132 -9.7
12
0.849 64.2
-7.8 0.408 -42.5
-16.4 0.152 -14.9
13
0.841 55.5
-8.2 0.391 -53.2
-15.8 0.162 -22.8
14
0.820 47.1
-8.5 0.377 -63.5
-15.1 0.176 -29.9
15
0.809 39.3
-9.0 0.354 -69.5
-14.7 0.185 -35.9
16
0.794 32.7
-9.1 0.350 -84.1
-13.6 0.210 -43.1
17
0.770 25.8
-9.6 0.332 -89.0
-12.6 0.234 -50.5
18
0.766 21.5
-9.2 0.346 -99.8
-11.5 0.266 -60.7
S22
Mag. Ang.
0.703
0.749
0.757
0.760
0.751
0.752
0.753
0.752
0.755
0.750
0.750
0.755
0.753
0.750
0.754
0.746
0.735
0.669
0.664
0.662
0.705
0.751
0.742
0.767
0.798
0.793
0.754
0.785
0.776
0.797
-162.3
-172.1
-176.5
-179.2
179.4
177.7
176.3
175.3
174.1
172.8
168.3
165.0
164.2
161.3
157.0
151.3
143.7
141.8
130.6
113.9
112.3
101.2
88.5
85.3
76.2
66.8
63.6
49.8
36.9
28.0
MSG/MAG K
dB
factor
33.8
0.150
30.8
0.269
29.1
0.390
27.5
0.496
26.5
0.559
25.5
0.651
24.6
0.717
23.7
0.777
23.0
0.806
22.4
0.870
18.2
1.057
15.8
1.126
15.2
1.157
13.5
1.215
11.5
1.244
9.3
1.225
7.4
1.255
5.0
1.438
3.8
1.455
2.7
1.466
2.3
1.437
1.5
1.429
0.0
1.646
0.0
1.539
-0.2
1.465
-1.0
1.527
-2.1
1.708
-2.1
1.543
-3.1
1.634
-2.6
1.394
40
Notes:
1. S parameter is measured on a microstrip line
30
S21
MSG
made on 0.025 inch thick alumina carrier. The
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 60. MSG/MAG & |S21|2 vs. Frequency
at 3.5V 200mA.
15