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第十五届全国等离子体科学技术会议

作者：丁亮霍文青杨新杰徐跃民 Center for Space Science and Applied Research Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

A large plasma sheet with 60cm×60cm×2cm is generated by hollow *** have been conducted for the C-Band microwave effect including transmission,reflection and *** different discharge parameters, plasma inside the chamber varies and influences the microwave strength collection. Microwave reflection decreases along with the discharge current rising up and transmission is opposite with *** C-Band microwave is absorbed when it is propagating through large plasma sheet with higher *** plasma density and collision frequency are fitting with the incident microwave frequency,large amount of microwave energy is *** the reflection,transmission and absorption exist *** plasma sheet is an attractive alternative for microwave steering with low ***,we can alter the microwave reflection for radar receiving by changing the discharge parameters.

关键词： Hollow cathode discharge microwave effect large plasma sheet density distribution

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The Interaction of C-Band Microwaves with large plasma sheets

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plasma Science and Technology 2012年第1期14卷 9-13页

作者： DING Liang HUO Wenqing YANG Xinjie XU Yuemin Center for Space Science and Applied Research Chinese Academy of SciencesBeijing 100190China Graduate University of Chinese Academy of Sciences Beijing 100049China

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.

关键词： hollow cathode discharge microwave effect large plasma sheet density distribution

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