常见问题
50Ω传输系统PI 型衰减器
50Ω传输系统PI型衰减器 PI Resistive Network Attenuator for 50Ω System
|
Allen(dB)
|
R1(Ω)
|
R2(Ω)
|
Allen(dB)
|
R1(Ω)
|
R2(Ω)
|
|
0.5
|
2.88
|
1737.66
|
20.50
|
262.45
|
60.42
|
|
1.00
|
5.77
|
869.55
|
21.00
|
278.28
|
59.78
|
|
1.50
|
8.68
|
580.50
|
21.50
|
295.02
|
59.19
|
|
2.00
|
11.61
|
436.21
|
22.00
|
312.75
|
58.63
|
|
2.50
|
14.59
|
349.83
|
22.50
|
331.51
|
58.11
|
|
3.00
|
17.61
|
292.40
|
23.00
|
351.36
|
57.62
|
|
3.50
|
20.70
|
251.52
|
23.50
|
372.39
|
57.16
|
|
4.00
|
23.85
|
220.97
|
24.00
|
394.65
|
56.73
|
|
4.50
|
27.08
|
197.32
|
24.50
|
418.21
|
56.33
|
|
5.00
|
30.40
|
178.49
|
25.00
|
443.16
|
55.96
|
|
5.50
|
33.82
|
163.17
|
25.50
|
469.59
|
55.61
|
|
6.00
|
37.35
|
150.48
|
26.00
|
497.56
|
55.28
|
|
6.50
|
41.01
|
139.81
|
26.50
|
527.19
|
54.97
|
|
7.00
|
44.80
|
130.73
|
27.00
|
558.56
|
54.68
|
|
7.50
|
48.74
|
122.92
|
27.50
|
591.79
|
54.40
|
|
8.00
|
52.84
|
116.14
|
28.00
|
626.98
|
54.15
|
|
8.50
|
57.12
|
110.21
|
28.50
|
664.24
|
53.91
|
|
9.00
|
61.59
|
104.99
|
29.00
|
703.71
|
53.68
|
|
9.50
|
66.26
|
100.37
|
29.50
|
745.51
|
53.47
|
|
10.00
|
71.15
|
96.25
|
30.00
|
789.78
|
53.27
|
|
10.50
|
76.28
|
92.56
|
30.50
|
836.67
|
53.08
|
|
11.00
|
81.66
|
89.24
|
31.00
|
886.33
|
52.90
|
|
11.50
|
87.31
|
86.25
|
31.50
|
938.93
|
52.73
|
|
12.00
|
93.25
|
83.54
|
32.00
|
994.64
|
52.58
|
|
12.50
|
99.50
|
81.09
|
32.50
|
1053.65
|
52.43
|
|
13.00
|
106.07
|
78.84
|
33.00
|
1116.15
|
52.29
|
|
13.50
|
113.00
|
76.80
|
33.50
|
1182.35
|
52.16
|
|
14.00
|
120.31
|
74.93
|
34.00
|
1252.47
|
52.04
|
|
14.50
|
128.01
|
73.21
|
34.50
|
1326.74
|
51.92
|
|
15.00
|
136.14
|
71.63
|
35.00
|
1405.41
|
51.81
|
|
15.50
|
144.72
|
70.18
|
35.50
|
1488.74
|
51.71
|
|
16.00
|
153.78
|
68.83
|
36.00
|
1577.00
|
51.61
|
|
16.50
|
163.35
|
67.59
|
36.50
|
1670.49
|
51.52
|
|
17.00
|
173.46
|
66.45
|
37.00
|
1769.51
|
51.43
|
|
17.50
|
184.14
|
65.39
|
37.50
|
1874.40
|
51.35
|
|
18.00
|
195.43
|
64.40
|
38.00
|
1985.51
|
51.27
|
|
18.50
|
207.38
|
63.49
|
38.50
|
2103.19
|
51.20
|
|
19.00
|
220.01
|
62.64
|
39.00
|
2227.85
|
51.13
|
|
19.50
|
233.37
|
61.85
|
39.50
|
2359.89
|
51.07
|
|
20.00
|
247.50
|
61.11
|
40.00
|
2499.75
|
51.01
|