微波部件的微放电效应检测系统

随着航天技术的快速发展，对微波部件载荷的功率容量要求越来越高，部件受微放电效应影响的问题越来越突出，建立有效的微放电检测手段显现的尤为迫切。在此背景下研制了一套微波部件的微放电效应检测系统，主要采用前向/后向功率检测法及调零检测法实现微放电的检测。首先介绍了微放电产生的机理及危害，其次从检测原理、系统的总体设计及调零装置的设计等3方面对系统研制的基本思路进行了阐述，最终通过实验验证表明系统能够良好的实现单载波状态下无源微波部件的微放电效应检测。

Multipactor effect detection system of microwave component

With the rapid development of space technology, the requirement of power capacity for microwave component loading is higher. Meanwhile, the affection by the Multipactor effect is becoming more prominent. So, the establishment of effective Multipactor detection means is particularly important. In this context, we have developed a set of Multipactor monitoring system. In this system, the forward/reflected power detection method and the Nulling detection method are used to realize the Multipactor detection. This paper firstly introduces the mechanism and harm of Multipactor effect. Then, the idea of developing the system,the whole system design and Nulling detection principle are described in detail. Finally, the experimental results show that the system is able to realize the Multipactor effect detection of passive microwave components in single carrier state.