电子学报2018，Vol.46Issue(2)：268-275,8.DOI:10.3969/j.issn.0372-2112.2018.02.002
m=0角向模表面波等离子体柱天线辐射特性
Radiation Characteristic for the m=0 Azimuthally Mode Surface Wave Plasma Column Antenna
摘要
Abstract
Application such as aircraft stealth,ionospheric communication based on the plasma electromagnetic scat-tering theory has drawn deep attention from plasma technology field.A detailed theoretical analysis of plasma Column anten-na radiation characteristic which also based on such plasma electromagnetic scattering theory is presented.According to the azimuthally symmetric surface wave dispersion relation in the non-magnetized plasma column with presence of electron-neu-tral atom collisions and non-uniform plasma densities both radial and axial,the complex surface wave-vector with real and i-maginary parts is studied as function of signal frequency and plasma density.Together with wave-vector,exponential distri-bution of the plasma column surface current model,the plasma impedance,we derived the dependence of antenna radiation pattern,the largest antenna gain and radiation impedance on signal frequency,also the dependence of antenna radial energy radiation on the plasma density.The theoretical results show that the signal frequency and plasma density have great influ-ence on antenna radiation pattern;the antenna radiation impedance and the maximum antenna gain change obviously with signal frequency,these theoretical results are in good agreement with the experimental measured results.关键词
等离子体柱天线/辐射方向图/最大增益/色散关系Key words
plasma column antenna/radiation pattern/maximum gain/dispersion relation分类
航空航天引用本文复制引用
李文秋,王刚,苏小保..m=0角向模表面波等离子体柱天线辐射特性[J].电子学报,2018,46(2):268-275,8.基金项目
国家高技术研究发展计划(No.2013AA8035040C) （No.2013AA8035040C）
