摘要
首先介绍了退扭绞对改善结构回波损耗的原理和实现方法,然后针对目前退扭绞对实现过程中存在的缺陷提出,加扭绞对同样也能改善电缆结构回波损耗指标,并给出了加扭绞对的试验结果。
In this paper, the author presents first the principle and execution of the method to improve structural re- turn loss by the back-twist pair. Then, in terms of the disadvantages of the method by back-twist pair, he indicates that structural return loss can be improved by the over-twist pair as well and presents the test results with the over- twist pair method.
出处
《电线电缆》
2009年第3期9-13,共5页
Wire & Cable
关键词
退扭绞对
加扭绞对
输入阻抗
结构回波损耗
symmetrical cable
back-twist pair
over-twist pair
input impedance
structural return loss
