AttenuatorsTable 1. Attenuator resistor values
for Zo=50 ohms.
(You can scale the values for any other Zo)
| Attenuation, dB
| Pi Attenuator
| Tee Attenuator |
| (Zo=50 ohms) |
R1 ohm |
R2 ohm |
R1 ohm |
R2 ohm |
| 1 |
869.5 |
5.8 |
2.9 |
433.3 |
| 2 |
436.2 |
11.6 |
5.7 |
215.2 |
| 3 |
292.4 |
17.6 |
8.5 |
141.9 |
| 4 |
221.0 |
23.8 |
11.3 |
104.8 |
| 5 |
178.5 |
30.4 |
14.0 |
82.2 |
| 6 |
150.5 |
37.4 |
16.6 |
66.9 |
| 7 |
130.7 |
44.8 |
19.1 |
55.8 |
| 8 |
116.1 |
52.8 |
21.5 |
47.3 |
| 9 |
105.0 |
61.6 |
23.8 |
40.6 |
| 10 |
96.2 |
71.2 |
26.0 |
35.1 |
| 11 |
89.2 |
81.7 |
28.0 |
30.6 |
| 12 |
83.5 |
93.2 |
29.9 |
26.8 |
| 13 |
78.8 |
106.1 |
31.7 |
23.6 |
| 14 |
74.9 |
120.3 |
33.4 |
20.8 |
| 15 |
71.6 |
136.1 |
34.9 |
18.4 |
| 16 |
68.8 |
153.8 |
36.3 |
16.3 |
| 17 |
66.4 |
173.5 |
37.6 |
14.4 |
| 18 |
64.4 |
195.4 |
38.8 |
12.8 |
| 19 |
62.6 |
220.0 |
39.9 |
11.4 |
| 20 |
61.1 |
247.5 |
40.9 |
10.1 |
| 30 |
53.3 |
789.8 |
46.9 |
3.2 |
| 40 |
51.0 |
2499.8 |
49.0 |
1.0 |
| 50 |
50.3 |
7905.6 |
49.7 |
0.32 |
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