›› 2019, Vol. 39 ›› Issue (3): 43-.doi: 10.16708/j.cnki.1000-758X.2019.0019

• 专题述评 • 上一篇    下一篇

中国空间大功率微波部件微放电抑制表面处理技术最新进展

 宋强强, 崔万照, 杨晶, 胡天存   

  1. 中国空间技术研究院西安分院 空间微波技术重点实验室,西安710100
  • 收稿日期:2018-11-19 修回日期:2019-01-02 出版日期:2019-06-25 发布日期:2019-03-19

Recent advances of multipactor suppression by surface treatment for highpower microwave components in China

 SONG  Qiang-Qiang, CUI  Wan-Zhao, YANG  Jing, HU  Tian-Cun   

  1. National Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology,
    Xi′an 710100,China
  • Received:2018-11-19 Revised:2019-01-02 Online:2019-06-25 Published:2019-03-19

摘要: 材料表面的二次电子发射会触发和维持空间高功率射频器件的共振雪崩放电现象,这种现象又被称为微放电效应。微放电效应是限制空间大功率微波部件应用的关键问题之一。从微放电作用的机理出发,首先介绍了两种微放电类型(单表面与双表面)的基本物理机理;然后总结了当前主流的微放电抑制方法并给出各自应用于空间大功率微波部件时的限制。针对空间大功率微波部件微放电抑制的特殊问题,综述了国内近5年来在表面处理法抑制微放电领域的研究成果并预测了微放电抑制技术的发展趋势。

关键词: 二次电子发射, 微放电抑制, 表面处理, 陷阱结构, 表面镀膜, 微放电

Abstract: The Secondary Electron Emission (SEE) from materials used in highpower RF devices in space is the main trigger and sustaining mechanism of the resonant avalanche electron discharge known as the multipactor effect. Multipactor effect is one of the key issues to limit the application of highpower microwave components in space. Starting from the mechanism of multipactor, the basic physical mechanism of two types of multipactors (singlesurface and twosurface)is briefly introduced, and then the current mainstream of multipactor suppression methods are summarized and the limitations of their respective applications in space highpower microwave components are given. Finally, focusing on the special problem of multipactor suppression in aerospace highpower microwave components, the research work on surface treatment to inhibit multipactor in the past five years is reviewed and the tendencies of multipactor suppression technology are predicted.

Key words: secondary electron emission, multipactor suppression, surface treatment, trap structure, surface coatings, multipactor