Technical Library :
국제테크노정보연구소
▒ dBm - Watts 변환표
고주파회로 설계 등에서는 전력의 표현에 "dBm"이나 "watts"를 널리 사용한다. dBm이란 mW 기준의 절대값 표현으로 0dBm=1mW이다. 변환식은, dBm=10log10 (mW) 이다. 몇몇 값은 기억해 두면 편리하다. 예를 들어, 0dBm=1mW, 10dBm=10mW, 20dBm=100mW, 30dBm=1W, 40dBm=10W 이다.
dBm
mW
W
0.0
1.00
5.0
3.16
10.0
15.0
31.6
20.0
100
25.0
316
30.0
35.0
0.1
1.02
5.1
3.24
10.1
10.2
15.1
32.4
20.1
102
25.1
324
30.1
35.1
0.2
1.05
5.2
3.31
10.5
15.2
33.1
20.2
105
25.2
331
30.2
35.2
0.3
1.07
5.3
3.39
10.3
10.7
15.3
33.9
20.3
107
25.3
339
30.3
35.3
0.4
1.10
5.4
3.47
10.4
11.0
15.4
34.7
20.4
110
25.4
347
30.4
35.4
0.5
1.12
5.5
3.55
11.2
15.5
35.5
20.5
112
25.5
355
30.5
0.6
1.15
5.6
3.63
10.6
11.5
15.6
36.3
20.6
115
25.6
363
30.6
35.6
0.7
1.17
5.7
3.72
11.7
15.7
37.2
20.7
117
25.7
372
30.7
35.7
0.8
1.20
5.8
3.80
10.8
12.0
15.8
38.0
20.8
120
25.8
380
30.8
35.8
0.9
1.23
5.9
3.89
10.9
12.3
15.9
38.9
20.9
123
25.9
389
30.9
35.9
1.0
1.26
6.0
3.98
12.6
16.0
39.8
21.0
126
26.0
398
31.0
36.0
1.1
1.29
6.1
4.07
11.1
12.9
16.1
40.7
21.1
129
26.1
407
31.1
36.1
1.2
1.32
6.2
4.17
13.2
16.2
41.7
21.2
132
26.2
417
31.2
36.2
1.3
1.35
6.3
4.27
11.3
13.5
16.3
42.7
21.3
135
26.3
427
31.3
1.4
1.38
6.4
4.37
11.4
13.8
16.4
43.7
21.4
138
26.4
437
31.4
36.4
1.5
1.41
6.5
4.47
14.1
16.5
44.7
21.5
141
26.5
447
31.5
36.5
1.6
1.45
6.6
4.57
11.6
14.5
16.6
45.7
21.6
145
26.6
457
36.6
1.7
1.48
6.7
4.68
14.8
16.7
46.8
21.7
148
26.7
468
31.7
36.7
1.8
1.51
6.8
4.79
11.8
16.8
47.9
21.8
151
26.8
479
31.8
36.8
1.9
1.55
6.9
4.90
11.9
16.9
49.0
21.9
155
26.9
490
31.9
36.9
2.0
1.58
7.0
5.01
17.0
50.1
22.0
158
27.0
501
32.0
37.0
2.1
1.62
7.1
5.13
12.1
17.1
51.3
22.1
162
27.1
513
32.1
37.1
2.2
1.66
7.2
5.25
12.2
17.2
52.5
22.2
166
27.2
525
32.2
2.3
1.70
7.3
5.37
17.3
53.7
22.3
170
27.3
537
32.3
37.3
2.4
1.74
7.4
5.50
12.4
17.4
55.0
22.4
174
27.4
550
37.4
2.5
1.78
7.5
5.62
12.5
17.8
17.5
56.2
22.5
178
27.5
562
32.5
37.5
2.6
1.82
7.6
5.75
18.2
17.6
57.5
22.6
182
27.6
575
32.6
37.6
2.7
1.86
7.7
5.89
12.7
18.6
17.7
58.9
22.7
186
27.7
589
32.7
37.7
2.8
1.91
7.8
6.03
12.8
19.1
60.3
22.8
191
27.8
603
32.8
37.8
2.9
1.95
7.9
6.17
19.5
17.9
61.7
22.9
195
27.9
617
32.9
37.9
3.0
2.00
8.0
6.31
13.0
18.0
63.1
23.0
200
28.0
631
33.0
3.1
2.04
8.1
6.46
13.1
18.1
64.6
23.1
204
28.1
646
38.1
3.2
2.09
8.2
6.61
66.1
23.2
209
28.2
661
33.2
38.2
3.3
2.14
8.3
6.76
13.3
18.3
67.6
23.3
214
28.3
676
33.3
38.3
3.4
2.19
8.4
6.92
13.4
18.4
69.2
23.4
219
28.4
692
33.4
38.4
3.5
2.24
8.5
7.08
18.5
70.8
23.5
224
28.5
708
33.5
38.5
3.6
2.29
8.6
7.24
13.6
72.4
23.6
229
28.6
724
33.6
38.6
3.7
2.34
8.7
7.41
13.7
18.7
74.1
23.7
234
28.7
741
33.7
38.7
3.8
2.40
8.8
7.59
24.0
18.8
75.9
23.8
240
28.8
759
33.8
38.8
3.9
2.45
8.9
7.76
13.9
24.5
18.9
77.6
23.9
245
28.9
776
4.0
2.51
9.0
7.94
14.0
19.0
79.4
251
29.0
794
34.0
39.0
4.1
2.57
9.1
8.13
81.3
24.1
257
29.1
813
34.1
39.1
4.2
2.63
9.2
8.32
14.2
19.2
83.2
24.2
263
29.2
832
34.2
39.2
4.3
2.69
9.3
8.51
14.3
19.3
85.1
24.3
269
29.3
851
34.3
39.3
4.4
2.75
9.4
8.71
14.4
19.4
87.1
24.4
275
29.4
871
34.4
39.4
4.5
2.82
9.5
8.91
89.1
282
29.5
891
34.5
39.5
4.6
2.88
9.6
9.12
14.6
19.6
91.2
24.6
288
29.6
912
34.6
39.6
4.7
2.95
9.7
9.33
14.7
19.7
93.3
24.7
295
29.7
933
39.7
4.8
3.02
9.8
9.55
19.8
95.5
24.8
302
29.8
955
34.8
4.9
3.09
9.9
9.77
14.9
19.9
97.7
24.9
309
29.9
977
34.9
39.9
Copyright © 2003 국제테크노정보연구소- All Rights Reserved.저작권은 국제테크노정보연구소와 컨텐츠 제공자에게 있으며, 무단복제를 일체 금합니다.
