|Table of Contents|

FDTD Analysis of Monopole Antenna Covered by Plasma


Research Field:
Publishing date:


FDTD Analysis of Monopole Antenna Covered by Plasma
QIAN Zhi-huaCHEN Ru-shanYANG Hong-wei
School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
monopole antenna plasma insulator ( FD) 2 TD
A monopole antenna covered by plasma with an insulator is analyzed by using the ( FD) 2TD method. Based on the field updated equations of general frequency-dependent media, equations for plasma are derived. A glass cylinder is used as an insulator so as to avoid short circuit in the case that the plasma frequency is greater than RF signal frequency. By introducing appropriate correct ions, the shift of resonant frequency for the monopole antenna caused by plasma is reduced. Effect of the covered plasma for different frequencies on the return loss of monopole antenna with or without the insulator is illustrated. Numerical results indicate that the higher the plasma frequency is, the stronger the effect of plasma on the waveform of reflected voltage and resonant frequency of monopole antenna is.


[ 1] 金兹堡B ?. 电磁波在等离子体中的传播[M] . 北京: 科学出版社, 1978.
[ 2] 布克H G. 冷等离子体波[M] . 北京: 科学出版社, 1985.
[ 3] 袁敬闳, 莫怀德. 等离子体中的波[M] . 成都: 电子科技大学出版社, 1990.
[ 4] Zhu X Q, Ge D B, Wu Y L. FDTD analysis of radiation from monopole antenna with plasma coating[ A] . 2003 6th International Symposium on Antennas, Propagation and EM Theory Proceedings [ C] . Beijing: House of Electronics Industry, 2003. 42- 45.
[ 5] 朱湘琴. 轴对称柱坐标FDTD 网格剖分技术及其在天线辐射中的应用[ D] . 西安: 西安电子科技大学理学院, 2002.
[ 6] Sullivan D M. Electromagnetic simulation using the FDTD method[M] . New York: IEEE Inc, 2000.
[ 7] Luebbers R, Hunsberger F P, Kunz K S. A frequency- dependent finite- difference time-domain formulation for transient propagation in plasma [ J] . IEEE Transactions on Antennas and Propagation, 1991, 39( 1) : 29- 34.
[ 8] Maloney J G, Shlager K L, Smith G S. A simple FDTD model for transient excitation of antennas by transmission lines [ J] . IEEE Transactions on Antennas and Propagation, 1994, 42( 2) : 289- 292.
[ 9] 葛德彪, 闫玉波. 电磁波时域有限差分方法[M] . 西安: 西安电子科技大学出版社, 2002.


Last Update: 2013-05-29