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·驻波换算 ·天线计算 |
阻抗为50欧姆的系统中,功率与电压之间的转换表: dBm mW dBmV mVRMS mV P mV PP -50 0.000 -3.0 0.7 1.0 2.0 -45 0.000 2.0 1.3 1.8 3.6 -40 0.000 7.0 2.2 3.2 6.3 -35 0.000 12.0 4.0 5.6 11.2 -30 0.001 17.0 7.1 10.0 20.0 -25 0.003 22.0 12.6 17.8 35.6 -20 0.010 27.0 22.4 31.6 63.2 -15 0.032 32.0 39.8 56.2 112.5 -10 0.100 37.0 70.7 100.0 200.0 -5 0.316 42.0 125.7 177.8 355.7 0 1.000 47.0 223.6 316.2 632.5 1 1.259 48.0 250.9 354.8 709.6 2 1.585 49.0 281.5 398.1 796.2 3 1.995 50.0 315.9 446.7 893.4 4 2.512 51.0 354.4 501.2 1002.4 5 3.162 52.0 397.6 562.3 1124.7 6 3.981 53.0 446.2 631.0 1261.9 7 5.012 54.0 500.6 707.9 1415.9 8 6.310 55.0 561.7 794.3 1588.7 9 7.943 56.0 630.2 891.3 1782.5 10 10.000 57.0 707.1 1000.0 2000.0 11 12.589 58.0 793.4 1122.0 2244.0 12 15.849 59.0 890.2 1258.9 2517.9 13 19.953 60.0 998.8 1412.5 2825.1 14 25.119 61.0 1120.7 1584.9 3169.8 15 31.623 62.0 1257.4 1778.3 3556.6 16 39.811 63.0 1410.9 1995.3 3990.5 17 50.119 64.0 1583.0 2238.7 4477.4 18 63.096 65.0 1776.2 2511.9 5023.8 19 79.433 66.0 1992.9 2818.4 5636.8 20 100.000 67.0 2236.1 3162.3 6324.6 21 125.893 68.0 2508.9 3548.1 7096.3 22 158.489 69.0 2815.0 3981.1 7962.1 23 199.526 70.0 3158.5 4466.8 8933.7 24 251.189 71.0 3543.9 5011.9 10023.7 25 316.228 72.0 3976.4 5623.4 11246.8 26 398.107 73.0 4461.5 6309.6 12619.1 27 501.187 74.0 5005.9 7079.5 14158.9 28 630.957 75.0 5616.7 7943.3 15886.6 29 794.328 76.0 6302.1 8912.5 17825.0 30 1000.000 77.0 7071.1 10000.0 20000.0 >>欣航威波 |
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