本文讨论了空气隙型光固定衰减器的回波损耗。
This paper discusses the return loss in air-space type fixed optical attenuator.
介绍了几种光回波损耗的测量原理和测量方法。
Several kinds of measurement principles and methods for optical return loss (ORL) are introduced.
图5是用于多波段天线系统的示例性回波损耗绘图。
FIG. 5 is an exemplary return-loss plot for the multi-band antenna system.
故障定位或DTF模式指示驻波比或回波损耗水平在各点沿电缆长度和天线系统。
Fault location or DTF mode indicates VSWR or Return Loss levels at each point along the cable and antenna system length.
交叉耦合滤波器的综合从给定的传输零点和回波损耗出发，直到得到各腔体之间的耦合系数。
The synthesis of the cross coupled filter is from prescribed transmission zeros and return loss till the attainment of the coupling matrix of each cavity.
结构回波损耗是通信电缆的重要指标之一，而电缆绝缘线芯的水电容可综合反映生产线上的周期性缺陷。
SRL (structural return loss) is one of the important indicators of telecom cables, while the capacitance in water of cable may reflect the periodic defect of the production line.
回波损耗测试是通过向双绞线注入DM(差模信号)然后测试返回的DM信号，然而TCL是测试CM信号。
Except a return Loss measurement is made by injecting a DM signal into the pair and measuring the DM signal returned. Here we are measuring the CM signal returned which is TCL.
结果表明基于基底打孔型方形孔EBG结构的贴片天线的性能最佳，其增益、带宽和输入回波损耗都得到了较大的改善。
Results show that different EBG structures have different effects on the patch antenna. The performance such as gain, bandwidth and return loss of the conventiona…
按照波动理论，在忽略衰减损耗的情况下，回波振幅（ ）。
Based upon wave theory and ignoring attenuation losses, the echo amplitude is.
按照波动理论，在忽略衰减损耗的情况下，回波振幅（ ）。
Based upon wave theory and ignoring attenuation losses, the echo amplitude is.
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