AN0015
Table 1. Tabular Summary of Values for “T” Attenuator Matched in a 50Ω System
T Pad Attenuator Values
R
(Ω)
R
(Ω)
S
(dB)
R
(Ω)
IN
S
P
21
2
4
6
8
624.0
310.5
205.3
152.3
120.0
98.2
82.3
70.1
60.4
52.5
45.8
40.1
35.1
30.6
26.7
23.1
19.8
16.7
13.9
11.3
8.8
-0.7
-1.4
-2.1
-2.8
-3.5
-4.3
-5.0
-5.8
-6.5
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
-7.4
-8.2
-9.1
-10.0
-11.0
12.0
-13.2
-14.4
-15.8
-17.3
-19.1
-21.2
-23.9
-27.6
-33.8
6.4
4.2
2.0
15
15-38
Copyright 1997-2002 RF Micro Devices, Inc.