Experimental Study on Electromagnetic Wave Scattering by Discharge Plasma

PANG Shuya; ZHANG Zihao; ZHAO Rikang; PENG Zulin; OUYANG Jiting; MIAO Jinsong

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Experimental Study on Electromagnetic Wave Scattering by Discharge Plasma

更新时间：2025-12-08

- Experimental Study on Electromagnetic Wave Scattering by Discharge Plasma
- Vol. 45, Issue 3, Pages: 839-845(2019)
- 作者机构：
  
  1. 北京理工大学物理学院
  2. 中国电子科技集团公司第五十三研究所光电信息控制和安全技术重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：14 March 2019，
  
  Published：2019
- 稿件说明：
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PANG Shuya, ZHANG Zihao, ZHAO Rikang, et al. Experimental Study on Electromagnetic Wave Scattering by Discharge Plasma[J]. 2019, 45(3): 839-845.
DOI：

PANG Shuya, ZHANG Zihao, ZHAO Rikang, et al. Experimental Study on Electromagnetic Wave Scattering by Discharge Plasma[J]. 2019, 45(3): 839-845. DOI：

摘要

本文研究空心阴极放电特性及其产生的非均匀等离子体和阵列对电磁波的散射特性。利用矩形和圆柱形空心阴极放电产生高密度等离子体

实验测试了其伏安特性曲线;利用微波法测试并计算了放电等离子体的密度;利用矢量网络分析仪测试了电磁波通过不同形状等离子体后的传输系数。结果表明:空心阴极放电等离子体具有较高密度

与放电电流有关;片状等离子体可以有效阻挡X-波段微波;非均匀等离子体柱可将电磁波散射到侧向

散射峰在±15°方向

且峰值随着放电电流（或等离子体密度）的增加而增大;紧密排列的等离子体柱阵列对微波的反射和透射与片状等离子体相似

可以替代大面积平面等离子体进行微波散射实验。

Abstract

We investigated the characteristics of hollow cathode discharge（HCD） and the scattering of electromagnetic wave on HCD plasmas. The volt-ampere characteristic curves of rectangular and column HCDs were measured experimentally and the plasma density was obtained by using the method of microwave measurement. Moreover

we investigated the transmission coefficients of electromagnetic wave interacting with several kinds of plasmas. The results show that HCD can generate high-density plasma density depending on the discharge current. A sheet HCD plasma can sufficiently block x-band microwaves. The plasma column of cylindrical HCD can scatter the electromagnetic wave to the lateral directions

with the peaks at an angle of ±15°. The peak value increases with the discharge current（or plasma density）. A well-arranged plasma array can act as planar plasma when acting with electromagnetic waves.

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