Due to insertion loss, the signal may require amplification.

由于存在插入损耗，所以信号可能需要放大。

The definition, test principle and index kind of insertion loss are stated.

说明了插入损耗的定义、测试原理以及指标种类；

Following the side-bANd filter is AN amplifier which makes up for the filter insertion loss.

边带滤波器后面接了一个放大器，以便补偿该边带滤波器的插入损耗。

Cable loss function measures insertion loss of the cable system over a given frequency range.

电缆损耗函数测量电缆系统在给定频率范围内的插入损耗。

Therefore, they exhibit lower insertion loss and are much shorter than the conventional designs.

因此，它具有比传统设计更低的插入损耗和更短的结构。