等离子体振子天线输入阻抗的数值模拟  

Numerical Calculation of the Input Impedance of Plasma Dipole Antennas

作　　者：李圣[1] 陈文波[1] 龚学余[1] 

机构地区：[1]南华大学电气工程学院,湖南衡阳421001

出　　处：《南华大学学报（自然科学版）》2010年第2期38-41,共4页Journal of University of South China：Science and Technology

基　　金：国家自然科学基金资助项目(10775066);湖南省教育厅基金资助项目(07C643)

摘　　要：对使用等离子体代替金属用来构成最基本的天线振子的可行性进行了分析,参照传统金属天线积分方程的求解方法,代入等离子体特征参数对等离子体柱天线的输入阻抗进行了模拟,并分析了等离子体参数变化时对应输入阻抗的变化规律.数值模拟及XFDTD软件仿真的结果表明:等离子体天线阻抗会随着等离子体密度,碰撞频率等参数的变化而改变.利用该特性可建造动态配置的天线.The feasibility of replacing metal antenna by plasma column which is formed a fundamental antenna vibrator is analyzed first. Then according to the approach of integral equation which is appropriable to metal antenna, the input impedance of plasma antenna is calculated and imitated. Furthermore, the evolution of input impedance is studied with varying plasma parameters. The results of numerical analysis and simulation with XFDTD （ a software） show that the input impedance of plasma can be varied with the plasma parameters such as plasma electric density and collision frequency. With the advantages of the property, reconfigurable antenna vibrator can be made from such plasma column.

关 键 词：等离子体 振子天线 积分方程法 输入阻抗 

分 类 号：TN820[电子电信—信息与通信工程]