期刊论文

中文

低温物理学报

1000-3258

2018

40

1

36-43

10.13380/j.cnki.chin.j.lowtemp.phys.2018.01.007

国家自然科学基金（批准号：11675073,11375085） 湖南省聚变与等离子体物理创新团队建设项目（批准号：NHXTD03） 南华大学博士启动基金项目（批准号：2015XQD43）资助的课题

本校为第一机构

本文建立了等离子体天线的二维轴对称模型,利用有限元法分析研究了低气压条件下氩气流和外部磁场对等离子体天线辐射性能的影响.本文通过改变外部磁场强度和氩气流速等条件,引起等离子体天线内部电子密度等物理参量的空间分布变化,并分析讨论空间分布变化产生的原因及其对天线辐射性能的影响.研究结果表明通过控制外部磁场强度、氩气流的大小可在一定程度上改善等离子天线的辐射性能.

In this paper,a two-dimensional axisymmetric model of plasma antenna is established.The influence of argon gas flow and external magnetic field on the radiation characteristics of plasma antenna under low pressure are studied by finite element method.In this paper,the spatial distribution of physical parameters such as the electron density inside the plasma antenna is changed by changing the conditions of the external magnetic field and the flow rate of the argon gas.The reasons for the spatial distribution change and its influence on the radiation performance of the antenna are analyzed and d...