一种多载波情况下的微放电检测新方法  

A New Method for Detection of Multipaction for Multicarrier

作　　者：李砚平[1] 马伊民[1] 

机构地区：[1]西安空间无线电技术研究所,西安710000

出　　处：《空间电子技术》2009年第3期103-107,共5页Space Electronic Technology

摘　　要：文章基于航天器无源产品在二次电子倍增微放电过程中,多载波信号通过会在近载波产生互调产物这一机理,介绍了在多载波情况下,用检测近载波互调产物变化来检测微放电的新方法。依据无源互调的幂级数非线性分析方法,建立双载波线性模型加以分析,说明距离载波较近的三阶互调产物的功率变化比载波功率变化快,提供了这种检测方法的理论依据,最后用实验结果验证了此方法。In the space industry, As the satellites of today are high-power and muhiband systems. Secondary electron resonance or multipactor is a persistent problem. The phenomenon is basically an RF breakdown which leads among other things to the generation of intermodulation products. Some flight hardware components need muhipaction test. Based on this results a new global method for detection of multipaction for muhicarrier is presented. Theory as well as experiments demonstrate the potential and usefulness of the method.

关 键 词：航天器无源产品 二次电子倍增微放电 多载波 互调产物 检测 

分 类 号：V443.3[航空宇航科学与技术—飞行器设计] TN911.6[电子电信—通信与信息系统]