Starting from the input reflection coefficient of a 1:N divider/corporate-feed antenna, measured when the outputs are short-circuited, a method is proposed to estimate its losses. When the outputs are in phase, as typically occurs in beamforming network applications, the relationship between such an input reflection coefficient and losses is straightforward and variation of reflection with frequency is smooth. When the phases are different from one another, the input reflection coefficient is always smaller than above and oscillates with frequency. The oscillation amplitudes strongly depend on the phase imbalance, and in some cases, reflection can tend to zero. Nonetheless, it will be shown that a preliminary estimation of the losses is still possible.

中文翻译：

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通过测量输出短路时的反射来估计 1:N 分频器的损耗

从输出短路时测量的 1:N 分频器/公司馈电天线的输入反射系数开始，提出了一种估计其损耗的方法。当输出同相时，通常发生在波束成形网络应用中，这种输入反射系数和损耗之间的关系很简单，反射随频率的变化是平滑的。当相位不同时，输入反射系数总是小于上述值并随频率振荡。振荡幅度很大程度上取决于相位不平衡，在某些情况下，反射可能趋于零。尽管如此，将表明对损失的初步估计仍然是可能的。