ATF-35143 Typical Scattering Parameters,
V
DS
= 2 V, I
DS
= 15 mA
Freq.
GHz
0.50
0.75
1.00
1.50
1.75
2.00
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
11.00
12.00
13.00
14.00
15.00
16.00
17.00
18.00
S
11
Mag.
Ang.
0.99
0.97
0.95
0.90
0.87
0.84
0.79
0.73
0.64
0.59
0.56
0.56
0.57
0.60
0.64
0.68
0.72
0.74
0.77
0.82
0.82
0.84
0.86
-19.75
-30.58
-40.15
-58.08
-66.65
-74.93
-91.13
-107.08
-139.07
-169.70
161.74
133.19
107.56
84.16
64.19
45.46
26.66
7.70
-5.93
-16.54
-28.76
-40.79
-56.40
dB
17.02
16.90
16.69
16.18
15.90
15.59
14.97
14.34
13.09
11.90
10.81
9.77
8.78
7.75
6.86
5.93
4.93
3.80
2.68
1.63
0.54
-0.49
-1.60
S
21
Mag.
7.10
7.00
6.83
6.44
6.23
6.02
5.61
5.21
4.51
3.93
3.47
3.08
2.75
2.44
2.20
1.98
1.76
1.55
1.36
1.21
1.06
0.95
0.83
Ang.
164.04
154.98
147.18
132.28
125.22
118.41
105.38
93.08
70.17
49.03
29.27
10.04
-8.35
-26.29
-43.56
-61.33
-78.94
-95.93
-111.53
-126.76
-142.70
-157.02
-172.47
dB
-32.77
-29.37
-27.13
-24.15
-23.10
-22.27
-20.92
-20.00
-18.94
-18.27
-17.79
-17.59
-17.46
-17.39
-17.33
-17.27
-17.27
-17.59
-17.92
-18.20
-18.49
-18.49
-18.94
S
12
Mag.
0.023
0.034
0.044
0.062
0.070
0.077
0.090
0.100
0.113
0.122
0.129
0.132
0.134
0.135
0.136
0.137
0.137
0.132
0.127
0.123
0.119
0.119
0.113
S
22
Ang.
77.60
70.54
64.80
54.23
49.25
44.36
35.36
26.85
11.15
-2.96
-16.43
-29.47
-40.80
-52.63
-63.33
-74.77
-86.46
-98.11
-107.51
-117.16
-127.03
-137.06
-147.50
Mag.
0.57
0.55
0.54
0.51
0.49
0.48
0.44
0.41
0.35
0.29
0.23
0.17
0.14
0.11
0.12
0.16
0.22
0.29
0.36
0.41
0.47
0.53
0.58
Ang.
-14.99
-20.86
-27.61
-40.74
-46.95
-53.06
-64.59
-75.32
-94.59
-113.89
-134.46
-158.65
172.14
134.01
95.85
63.20
40.01
23.11
3.55
-12.09
-26.21
-35.57
-47.29
MSG/MAG
dB
24.89
23.05
21.91
20.17
19.53
18.93
17.95
17.17
16.01
15.09
14.30
13.68
12.29
10.74
9.99
9.34
8.57
7.62
6.79
6.76
5.81
5.55
5.06
ATF-35143 Typical Noise Parameters
V
DS
= 2 V, I
DS
= 15 mA
Freq.
F
min
Γ
opt
GHz
dB
Mag.
Ang.
0.5
0.10
0.88
4.5
0.9
0.13
0.83
13.1
1.0
0.14
0.82
15.3
1.5
0.19
0.76
26.1
1.8
0.22
0.72
32.6
2.0
0.23
0.70
36.9
2.5
0.29
0.64
48.5
3.0
0.34
0.58
60.9
4.0
0.45
0.49
87.9
5.0
0.56
0.42
117.4
6.0
0.67
0.37
149.0
7.0
0.79
0.34
-178.1
8.0
0.90
0.33
-144.3
9.0
1.01
0.34
-110.2
10.0
1.12
0.36
-76.3
R
n/50
-
0.19
0.17
0.16
0.15
0.15
0.14
0.12
0.07
0.13
0.07
0.05
0.05
0.07
0.13
0.23
G
a
dB
20.9
19.4
19.2
17.9
17.3
17.0
16.2
15.4
14.1
12.8
11.7
10.8
9.9
9.2
8.6
30
25
MSG/MAG and S
21
(dB)
20
15
10
5
0
-5
0
S
21
MSG
MAG
5
10
15
20
FREQUENCY (GHz)
Figure 20. MSG/MAG and |S
21
|
2
vs.
Frequency at 2 V, 15 mA.
Notes:
1. F
min
values at 2 GHz and higher are based on measurements while the F
mins
below 2 GHz have been extrapolated. The F
min
values are
based on a set of 16 noise figure measurements made at 16 different impedances using an ATF NP5 test system. From these measure-
ments a true F
min
is calculated. Refer to the noise parameter application section for more information.
2. S and noise parameters are 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. The parameters include the effect of four plated
through via holes connecting source landing pads on top of the test carrier to the microstrip ground plane on the bottom side of the
carrier. Two 0.020 inch diameter via holes are placed within 0.010 inch from each source lead contact point, one via on each side of
that point.
8
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
