Numerical simulation of plasma antenna with FDTD method

被引：27
作者：
Liang Chao [1 ]
Xu Yue-Min [1 ]
Wang Zhi-Jiang [1 ]
机构：
[1] Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Numerical methods - Plasma applications - Finite difference time domain method;
D O I：
10.1088/0256-307X/25/10/053
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We adopt cylindrical-coordinate FDTD algorithm to simulate and analyse a 0.4-m-long column configuration plasma antenna. FDTD method is useful for solving electromagnetic problems, especially when wave characteristics and plasma properties are self- consistently related to each other. Focus on the frequency from 75MHz to 400MHz, the input impedance and radiation efficiency of plasma antennas are computed. Numerical results show that, different from copper antenna, the characteristics of plasma antenna vary simultaneously with plasma frequency and collision frequency. The property can be used to construct dynamically reconfigurable antenna. The investigation is meaningful and instructional for the optimization of plasma antenna design.
引用
收藏
页码：3712 / 3715
页数：4
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