NE681 SERIES
TYPICAL COMMON EMITTER SCATTERING PARAMETERS
5 GHz
5 GHz
S21
0.1 GHz
S22
0.1 GHz
S12
0.1 GHz
5 GHz
S11
0.1 GHz
5 GHz
Coordinates in Ohms
Frequency in GHz
(VCE = 8 V, IC = 10 mA)
NE68135
VCE = 8 V, IC = 7 mA
FREQUENCY
S11
S21
S12
S22
K
MAG1
(dB)
(MHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
100
5 00
.836
.659
.585
.557
.562
.561
.562
.563
-26.1
-105.0
-146.1
-167.0
-180.0
159.6
142.8
127.0
18.427
11.481
6.625
4.555
3.507
2.413
1.854
1.516
160.4
114.7
90.3
75.5
63.9
43.4
25.1
8.0
.014
.041
.051
.058
.068
.088
.113
.142
73.6
44.3
38.3
39.3
41.3
43.1
41.9
38.7
.959
.654
.512
.472
.462
.468
.490
.522
-11.3
-33.2
-38.5
-43.1
-49.4
-64.3
-80.4
-96.0
0.16
31.1
24.4
21.1
18.9
16.4
12.4
10.6
10.3
0.38
0.68
0.93
1.02
1.11
1.07
0.98
1000
1500
2000
3000
4000
5000
VCE = 8 V, IC = 10 mA
100
500
.781
.609
.558
.540
.547
.549
.551
.551
-32.1
-117.6
-154.7
-173.1
175.3
156.5
140.6
125.2
24.097
13.015
7.233
4.925
3.778
2.590
1.990
1.629
157.2
109.6
87.5
73.9
62.9
43.3
25.5
8.7
.013
.036
.045
.055
.067
.091
.119
.149
73.4
44.6
43.2
45.8
47.6
47.4
44.2
39.4
.937
.582
.457
.425
.420
.428
.452
.486
-13.9
-35.2
-38.5
-42.6
-48.8
-63.7
-79.7
-95.2
0.15
0.47
0.79
1.00
1.05
1.09
1.05
0.96
32.6
25.6
22.0
19.4
16.1
12.7
10.9
10.4
1000
1500
2000
3000
4000
5000
VCE = 8 V, IC = 20 mA
100
500
.654
.547
.535
.527
.534
.541
.544
.544
-49.9
-139.7
-168.1
-177.7
168.5
151.9
137.2
122.7
36.807
14.980
7.916
5.328
4.072
2.780
2.131
1.745
149.3
101.5
83.2
71.3
61.1
42.7
25.5
9.0
.012
.027
.038
.051
.065
.094
.124
.156
67.4
49.0
53.7
56.2
56.6
53.4
47.8
41.3
.877
.475
.392
.375
.376
.389
.415
.451
-19.2
-34.9
-35.7
-39.9
-46.5
-61.9
-78.1
-93.7
0.21
0.66
0.95
1.08
1.09
1.07
1.01
0.94
35.0
27.5
23.2
18.4
16.2
13.1
11.6
10.5
1000
1500
2000
3000
4000
5000
VCE = 8 V, IC = 30 mA
100
500
.575
.539
.537
.532
.541
.549
.552
.553
-64.1
-150.2
-173.7
173.7
165.5
149.8
135.7
121.2
43.452
15.238
7.926
5.318
4.058
2.767
2.118
1.731
144.0
97.9
81.2
69.9
60.1
41.9
24.9
8.5
.010
.023
.036
.049
.064
.094
.125
.157
64.1
52.7
58.9
60.7
60.2
55.9
49.8
42.9
.831
.441
.381
.370
.374
.390
.416
.453
-21.9
-32.3
-32.9
-37.8
-44.9
-60.9
-77.4
-93.3
0.26
0.77
1.01
1.11
1.09
1.06
1.00
0.92
36.3
28.2
22.7
18.3
16.1
13.2
12.1
10.4
1000
1500
2000
3000
4000
5000
Note:
1. Gain Calculations:
2
1 + | ∆ |2 - |S11
|
2 - |S22
|
|S21
|S12
|
|
K 2 - 1 ). When K ≤ 1, MAG is undefined and MSG values are used.
∆ = S11 S22 - S21 S12
|S21
|S12
|
|
(K
MAG =
MSG =
, K =
,
2 |S12
S21|
MAG = Maximum Available Gain
MSG = Maximum Stable Gain
CEL [ CALIFORNIA EASTERN LABS ]
