A Study of Passive Intermodulation in Degraded Coaxial Connectors

摘要：

　　Coaxial connectors generally have slight nonlinear characteristics.The nonlinearity of connectors can cause passive intermodulation (PIM) interference.The connectors will degrade continuously during use,which will aggravate the PIM interference and affect the transmission quality of communication systems.In this paper, a nonlinear behavior model and a prediction model of third-order intermodulation product power of pristine connectors are obtained first.The contact resistance is selected as the index to quantify the degradation degree of the connectors, then the prediction model of third-order intermodulation product power for connectors with various degrees of degradation is developed for the first time.A series of PIM tests are conducted to verify the correctness of the model.This paper provides a theoretical basis for predicting the PIM of degraded coaxial connectors.

关键词： Coaxial connector degradation nonlinear characteristics passive intermodulation

作者: Lingyu Bi Jinchun Gao Qiuyan Jin Gang Xie Xiaoming Li

作者单位: Beijing University of Posts and Telecommunications, Beijing 100876, China The 54th Research Institute of CETC, Shijiazhuang, Hebei 050081, China

会议类型: 国际会议

会议名称: The 7th Intrenational Conference on Reliability of Electrical Products and Electrical Contacts(第七届电工产品可靠性与电接触国际会议)

会议地点: 江苏苏州

会议语种:英文

页码: 155-159

在线出版日期: 2019-11-04（万方平台首次上网日期，不代表论文的发表时间）