空间科学学报2011，Vol.31Issue(5)：682-686,5.
基于JEC—FDTD算法的等离子体天线雷达散射截面计算
Calculation on Radar Cross Section of Plasma-column Antenna Using JEC-FDTD Method
摘要
Abstract
The paper has founded the 2D model of plasma antenna and JE convolution Finite- Difference Time-Domain （JEC-FDTD） algorithm is applied to the study on the antenna scattering characteristics based on the model. The effects of plasma density, collision frequency and glass tube on the Radar Cross Section （RCS） of the plasma antenna were analyzed in the paper. Analysis results show that RCS of plasma antenna can greatly decrease with the collision frequency increasing and plasma density decreasing. On the other hand, when the plasma antenna work at high frequency, the glass tube also has impact on the antenna scattering characteristics. Accordingly, increase in thickness of glass tube and enlargement of permittivity of glass will make RCS of the antenna decrease. So the stealth performance of plasma antenna can be improved by choosing the suitable plasma parameter and materials of glass tube based on the work frequency.关键词
等离子体天线/电流密度卷积FDTD算法/雷达散射截面Key words
Plasma antenna/JEC-FDTD algorithms/RCS （Radar Cross Section）分类
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陈文波,李圣,龚学余..基于JEC—FDTD算法的等离子体天线雷达散射截面计算[J].空间科学学报,2011,31(5):682-686,5.基金项目
国家自然科学基金项目（10775066）和湖南省教育基金项目（07C643）共同资助 （）
