CHARACTERIZATION OF A SURFACE WAVE DRIVEN PLASMA MONOPOLE ANTENNA

被引：16
|
作者：
Sadeghikia, F. [1 ]
Hodjat-Kashani, F. [1 ]
Rashed-Mohassel, J. [2 ]
Ghayoomeh-Bozorgi, J. [1 ]
机构：
[1] Iran Univ Sci & Technol, Dept Elect Engn, Tehran, Iran
[2] Univ Tehran, Ctr Excellence Appl Electromagnet Syst, ECE Dept, Tehran, Iran
来源：
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2012年 / 26卷 / 2-3期
关键词：
D O I：
10.1163/156939312800030857
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This theoretical study examines the characteristics of a surface wave driven argon plasma monopole antenna with excitation power level up to 100W and gas pressure of 0.4mb using finite difference time domain method. Input impedance, radiation pattern, gain, efficiency and radar cross section of plasma antenna at different excitation power are presented here. The results show that variations of the excitation powers can be used for construction of a dynamically reconfigurable antenna. Since the plasma tube is one of the important factors which can affect the performance of the antenna, the input impedance and gain of plasma antenna was studied under different thicknesses and materials. The least thickness can cause a more efficient antenna while minimizing its bandwidth.
引用
收藏
页码：239 / 250
页数：12
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