The Interaction of C-Band Microwaves with Large Plasma Sheets

作     者：DING Liang HUO Wenqing YANG Xinjie XU Yuemin 丁亮;霍文青;杨新杰;徐跃民

作者机构：Center for Space Science and Applied ResearchChinese Academy of SciencesBeijing 100190China Graduate University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2012年第14卷第1期

页      面：9-13页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

主　　题：hollow cathode discharge microwave effect large plasma sheet density distribution 

摘      要：A large plasma sheet 60 cm×60 cm×2 cm in size was generated using a hollow cathode, and measurements were conducted for interactions including transmission, reflection and absorption. With different discharge parameters, plasma sheets can vary and influence microwave strength. Microwave reflection decreases when the discharge current rises, and the opposite occurs in transmission. The C-band microwave is absorbed when it is propagated through large plasma sheets at higher pressure. When plasma density and collision frequency are fitted with incident microwave frequency, a large amount of microwave energy is consumed. Reflection, transmission and absorption all exist simultaneously. Plasma sheets are an attractive alternative to microwave steering at low pressure, and the microwave reflection used in receiving radar can be altered by changing the discharge parameters.