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International Journal of Antennas and Propagation
Volume 2015, Article ID 736090, 5 pages
Research Article

Modeling of a Plasma Antenna with Inhomogeneous Distribution of Electron Density

1State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute, Hefei, Anhui 230037, China
2Institute of Information Ammunition, Academy of Army Officers, Hefei, Anhui 230031, China

Received 16 October 2014; Accepted 26 January 2015

Academic Editor: Atsushi Mase

Copyright © 2015 Zong-sheng Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The distribution of the electron density along a plasma antenna can influence the antenna’s performance. But little has been done in this regard in former studies. In this paper, a model of a practical plasma antenna with an inhomogeneous distribution of electron density is founded according to the transmission-line equivalent theory of a metal monopole, from which the current distribution and the radiation pattern of a plasma antenna with appropriate parameters are calculated. The results show that the electrical current distribution, the maximum radiation direction, and the beamwidth of a plasma antenna vary with electron density distributions. To validate the model, the plasma antenna with the same parameters is also simulated based on electromagnetic software HFSS. It is found that the results from the two ways are almost consistent.