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Technical Library :
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±¹Á¦Å×Å©³ëÁ¤º¸¿¬±¸¼Ò
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¢Æ ¹Ì½º¸ÅĪ
ȯ»êÇ¥ (Return Loss - VSWR)
°íÁÖÆÄ È¸·Î¿¡¼ÀÇ Á¤ÇÕ¼ºÀº Return
Loss(¹Ý»ç¼Õ½Ç)À̳ª VSWR(Voltage Standing Wave Ratio,
Àü¾ÐÁ¤ÀçÆĺñ)·Î Ç¥½ÃÇÑ´Ù.
- Return Loss= 20log10(VSWR+1/VSWR-1) (dB)
-
VSWR= (10R.L./20+1/10R.L./20-1)
|
VSWR |
Return
Loss
(dB) |
Trans.
Loss
(dB) |
Volt.
Refl
Coeff |
Power
Trans
(%) |
Power
Refl
(%) |
VSWR |
Return
Loss
(dB) |
Trans.
Loss
(dB) |
Volt.
Refl
Coeff |
Power
Trans
(%) |
Power
Refl
(%) |
1.00 |
-- |
0.000 |
0.00 |
100.0 |
0.0 |
1.64 |
12.3 |
0.263 |
0.24 |
94.1 |
5.9 |
1.01 |
46.1 |
0.000 |
0.00 |
100.0 |
0.0 |
1.66 |
12.1 |
0.276 |
0.25 |
93.8 |
6.2 |
1.02 |
40.1 |
0.000 |
0.01 |
100.0 |
0.0 |
1.68 |
11.9 |
0.289 |
0.25 |
93.6 |
6.4 |
1.03 |
36.6 |
0.001 |
0.01 |
100.0 |
0.0 |
1.70 |
11.7 |
0.302 |
0.26 |
93.3 |
6.7 |
1.04 |
34.2 |
0.002 |
0.02 |
100.0 |
0.0 |
1.72 |
11.5 |
0.315 |
0.26 |
93.0 |
7.0 |
1.05 |
32.3 |
0.003 |
0.02 |
99.9 |
0.1 |
1.74 |
11.4 |
0.329 |
0.27 |
92.7 |
7.3 |
1.06 |
30.7 |
0.004 |
0.03 |
99.9 |
0.1 |
1.76 |
11.2 |
0.342 |
0.28 |
92.4 |
7.6 |
1.07 |
29.4 |
0.005 |
0.03 |
99.9 |
0.1 |
1.78 |
11.0 |
0.356 |
0.28 |
92.1 |
7.9 |
1.08 |
28.3 |
0.006 |
0.04 |
99.9 |
0.1 |
1.80 |
10.9 |
0.370 |
0.29 |
91.8 |
8.2 |
1.09 |
27.3 |
0.008 |
0.04 |
99.8 |
0.2 |
1.82 |
10.7 |
0.384 |
0.29 |
91.5 |
8.5 |
1.10 |
26.4 |
0.010 |
0.05 |
99.8 |
0.2 |
1.84 |
10.6 |
0.398 |
0.30 |
91.3 |
8.7 |
1.11 |
25.7 |
0.012 |
0.05 |
99.7 |
0.3 |
1.86 |
10.4 |
0.412 |
0.30 |
91.0 |
9.0 |
1.12 |
24.9 |
0.014 |
0.06 |
99.7 |
0.3 |
1.88 |
10.3 |
0.426 |
0.31 |
90.7 |
9.3 |
1.13 |
24.3 |
0.016 |
0.06 |
99.6 |
0.4 |
1.90 |
10.2 |
0.440 |
0.31 |
90.4 |
9.6 |
1.14 |
23.7 |
0.019 |
0.07 |
99.6 |
0.4 |
1.92 |
10.0 |
0.454 |
0.32 |
90.1 |
9.9 |
1.15 |
23.1 |
0.021 |
0.07 |
99.5 |
0.5 |
1.94 |
9.9 |
0.468 |
0.32 |
89.8 |
10.2 |
1.16 |
22.6 |
0.024 |
0.07 |
99.5 |
0.5 |
1.96 |
9.8 |
0.483 |
0.32 |
89.5 |
10.5 |
1.17 |
22.1 |
0.027 |
0.08 |
99.4 |
0.6 |
1.98 |
9.7 |
0.497 |
0.33 |
89.2 |
10.8 |
1.18 |
21.7 |
0.030 |
0.08 |
99.3 |
0.7 |
2.00 |
9.5 |
0.512 |
0.33 |
88.9 |
11.1 |
1.19 |
21.2 |
0.033 |
0.09 |
99.2 |
0.8 |
2.50 |
7.4 |
0.881 |
0.43 |
81.6 |
18.4 |
1.20 |
20.8 |
0.036 |
0.09 |
99.2 |
0.8 |
3.00 |
6.0 |
1.249 |
0.50 |
75.0 |
25.0 |
1.21 |
20.4 |
0.039 |
0.10 |
99.1 |
0.9 |
3.50 |
5.1 |
1.603 |
0.56 |
69.1 |
30.9 |
1.22 |
20.1 |
0.043 |
0.10 |
99.0 |
1.0 |
4.00 |
4.4 |
1.938 |
0.60 |
64.0 |
36.0 |
1.23 |
19.7 |
0.046 |
0.10 |
98.9 |
1.1 |
4.50 |
3.9 |
2.255 |
0.64 |
59.5 |
40.5 |
1.24 |
19.4 |
0.050 |
0.11 |
98.9 |
1.1 |
5.00 |
3.5 |
2.553 |
0.67 |
55.6 |
44.4 |
1.25 |
19.1 |
0.054 |
0.11 |
98.8 |
1.2 |
5.50 |
3.2 |
2.834 |
0.69 |
52.1 |
47.9 |
1.26 |
18.8 |
0.058 |
0.12 |
98.7 |
1.3 |
6.00 |
2.9 |
3.100 |
0.71 |
49.0 |
51.0 |
1.27 |
18.5 |
0.062 |
0.12 |
98.6 |
1.4 |
6.50 |
2.7 |
3.351 |
0.73 |
46.2 |
53.8 |
1.28 |
18.2 |
0.066 |
0.12 |
98.5 |
1.5 |
7.00 |
2.5 |
3.590 |
0.75 |
43.7 |
56.3 |
1.29 |
17.9 |
0.070 |
0.13 |
98.4 |
1.6 |
7.50 |
2.3 |
3.817 |
0.76 |
41.5 |
58.5 |
1.30 |
17.7 |
0.075 |
0.13 |
98.3 |
1.7 |
8.00 |
2.2 |
4.033 |
0.78 |
39.5 |
60.5 |
1.32 |
17.2 |
0.083 |
0.14 |
98.1 |
1.9 |
8.50 |
2.1 |
4.240 |
0.79 |
37.7 |
62.3 |
1.34 |
16.8 |
0.093 |
0.15 |
97.9 |
2.1 |
9.00 |
1.9 |
4.437 |
0.80 |
36.0 |
64.0 |
1.36 |
16.3 |
0.102 |
0.15 |
97.7 |
2.3 |
9.50 |
1.8 |
4.626 |
0.81 |
34.5 |
65.5 |
1.38 |
15.9 |
0.112 |
0.16 |
97.5 |
2.5 |
10.00 |
1.7 |
4.807 |
0.82 |
33.1 |
66.9 |
1.40 |
15.8 |
0.122 |
0.17 |
97.2 |
2.8 |
11.00 |
1.6 |
5.149 |
0.83 |
30.6 |
69.4 |
1.42 |
15.2 |
0.133 |
0.17 |
97.0 |
3.0 |
12.00 |
1.5 |
5.466 |
0.85 |
28.4 |
71.6 |
1.44 |
14.9 |
0.144 |
0.18 |
96.7 |
3.3 |
13.00 |
1.3 |
5.762 |
0.86 |
26.5 |
73.5 |
1.46 |
14.6 |
0.155 |
0.19 |
96.5 |
3.5 |
14.00 |
1.2 |
6.040 |
0.87 |
24.9 |
75.1 |
1.48 |
14.3 |
0.166 |
0.19 |
96.3 |
3.7 |
15.00 |
1.2 |
6.301 |
0.88 |
23.4 |
76.6 |
1.50 |
14.0 |
0.177 |
0.20 |
96.0 |
4.0 |
16.00 |
1.1 |
6.547 |
0.88 |
22.1 |
77.9 |
1.52 |
13.7 |
0.189 |
0.21 |
95.7 |
4.3 |
17.00 |
1.0 |
6.780 |
0.89 |
21.0 |
79.0 |
1.54 |
13.4 |
0.201 |
0.21 |
95.5 |
4.5 |
18.00 |
1.0 |
7.002 |
0.89 |
19.9 |
80.1 |
1.56 |
13.2 |
0.213 |
0.22 |
95.2 |
4.8 |
19.00 |
0.9 |
7.212 |
0.90 |
19.0 |
81.0 |
1.58 |
13.0 |
0.225 |
0.22 |
94.9 |
5.1 |
20.00 |
0.9 |
7.413 |
0.90 |
18.1 |
81.9 |
1.60 |
12.7 |
0.238 |
0.23 |
94.7 |
5.3 |
25.00 |
0.7 |
8.299 |
0.92 |
14.8 |
85.2 |
1.62 |
12.5 |
0.250 |
0.24 |
94.4 |
5.6 |
30.00 |
0.6 |
9.035 |
0.94 |
12.5 |
87.5 |
VSWR |
Return
Loss
(dB) |
Trans.
Loss
(dB) |
Volt.
Refl
Coeff |
Power
Trans
(%) |
Power
Refl
(%) |
VSWR |
Return
Loss
(dB) |
Trans.
Loss
(dB) |
Volt.
Refl
Coeff |
Power
Trans
(%) |
Power
Refl
(%) |
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