J4 ›› 2015, Vol. 42 ›› Issue (3): 168-172.doi: 10.3969/j.issn.1001-2400.2015.03.028

• Original Articles • Previous Articles     Next Articles

Improved SO-FDTD method for non-magnetized plasmas

ZHANG Hou1;XU Zhiyong1;YIN Xiong1;ZHAO Zhenwei2;WU Rui1   

  1. (1. Air and Missile Defense College, Air Force Engineering Univ., Xi'an  710051, China;
    2. China Research Institute of Radio-wave Propagation, Qingdao  266107, China)
  • Received:2014-01-17 Online:2015-06-20 Published:2015-07-27
  • Contact: ZHANG Hou E-mail:warmer88@163.com

Abstract:

To improve the calculation efficiency of the FDTD method when dealing with the complex plasma problem, an improved shift operator-finite difference time domain(SO-FDTD) method for non-magnetized plasmas is prensented, and applied to calculate the reflection and transmission coefficients of the non-magnetized plasma flat, which provides a certain theoretical guidance to analysis of the propagation characteristics of the EM waves interacting with the plasma. The memory-minimized algorithm is applied to the method to save the system memory and improve the calculation speed. It is shown that the high efficiency and accuracy of the method are validated by comparing with the analytical method and the SO-FDTD method proposed in the recent references.

Key words: non-magnetized, plasmas, shift operator, finite difference time domain