s11 回波损耗 反射系数 驻波比

S11是输入反射系数，也就是输入回波损耗。回波损耗是反射系数绝对值的倒数，以分贝值表示。回波损耗的值在0dB的到无穷大之间，回波损耗越大表示匹配越好。0表示全反射，无穷大表示完全匹配。 反射系数是反射电压与入射电压的比值，是一个标量。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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