论文标题
粗糙导体接触处的被动交流
Passive Intermodulation at Contacts of Rough Conductors
论文作者
论文摘要
被动间调节（PIM）是一种琐碎的现象，它使现代通信和导航系统的性能衰弱。 PIM产品干扰信息信号并引起其非线性失真。在文献中研究了PIM的来源和基本机制，但PIM仍然是信号完整性的严重问题。在本文中，讨论了通过良好导体的关节产生PIM的主要来源和机制。结果表明，尽管其时间尺度截然不同，但被动电气，热和机械非线性仍在本质上连接。接触表面的粗糙度在导体关节生成PIM中起着重要作用。对良好导体接触的PIM现象学的综述表明，新型多物理模型对于分析和可靠的预测PIM产物是由多种物理性质的几种并发非线性产生的。
Passive intermodulation (PIM) is a niggling phenomenon that debilitates performance of modern communications and navigation systems. PIM products interfere with the information signals and cause their nonlinear distortion. The sources and basic mechanisms of PIM were studied in literature but PIM remains a serious problem of signal integrity. In this paper, the main sources and mechanisms of PIM generation by joints of good conductors are discussed. It is shown that the passive electrical, thermal and mechanical nonlinearities are intrinsically linked despite their distinctively different time scales. The roughness of the contact surfaces plays an important role in PIM generation by conductor joints. A review of the PIM phenomenology at contacts of the good conductors suggests that novel multiphysics models are necessary for the analysis and reliable prediction of PIM products generated by several concurrent nonlinearities of diverse physical nature.
