Application of moving coordinate FDTD method to electromagnetic pulse propagation

li yong; wang jianguo

Volume 22 Issue 11

Sep. 2010

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Article Navigation > High Power Laser and Particle Beams > 2010 > 22(11): 0-

yao zhibin, he baoping, zhang fengqi, et al. Development of measurement system for radiation effect on static random access memory based field programmable gate array[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

li yong, wang jianguo. Application of moving coordinate FDTD method to electromagnetic pulse propagation[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

li yong, wang jianguo. Application of moving coordinate FDTD method to electromagnetic pulse propagation[J]. High Power Laser and Particle Beams, 2010, 22.

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Application of moving coordinate FDTD method to electromagnetic pulse propagation

li yong^1,2,
wang jianguo²

1.
Department of Physics,University of Science and Technology of China,Hefei 230026,China;
2.
Northwest Institute of Nuclear Technology,P.O.Box 69-12,Xi’an 710024,China

Publish Date: 2010-09-29

Abstract

Abstract

The moving coordinate frame finite-difference time-domain (FDTD) method is developed to simulate the propagation of electromagnetic pulses over long distances. The discretized form of moving coordinate frame FDTD scheme in three dimensions is given, and is applied to calculate the propagation of different pulses in rectangular waveguides. The widths of pulses in propagation direction increase when the pulses propagate in the waveguide. Dispersion phenomena appear, and slow parts of the pulses move to the pulse tail. Result comparison between conventional FDTD method and moving coordinate frame FDTD method shows the relative error of less than 0.1%. The proposed method is shown to be accurate with a considerable reduction in time and memory consumption.
- finite-difference time-domain,
- moving coordinate,
- electromagnetic pulses,
- propagation

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