The Interaction of C-Band Microwaves with Large Plasma Sheets

DING Liang (丁亮); HUO Wenqing (霍文青); YANG Xinjie (杨新杰); XU Yuemin (徐跃民)

doi:10.1088/1009-0630/14/1/03

Plasma Science and Technology > 2012 > 14(1): 9-13. > DOI: 10.1088/1009-0630/14/1/03

DING Liang (丁亮), HUO Wenqing (霍文青), YANG Xinjie (杨新杰), XU Yuemin (徐跃民). The Interaction of C-Band Microwaves with Large Plasma Sheets[J]. Plasma Science and Technology, 2012, 14(1): 9-13. DOI: 10.1088/1009-0630/14/1/03

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The Interaction of C-Band Microwaves with Large Plasma Sheets

1.
Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China
2.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China

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Received Date: August 05, 2011

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Abstract

Abstract

A large plasma sheet 60cm x 60cm x2cm 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.
- hollow cathode discharge,
- microwave effect,
- large plasma sheet,
- density distribution

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