Title :
A higher order ADI-FDTD method for EM propagation in plasma
Author :
Liu, Song ; Liu, Shaobin ; Song, Han
Author_Institution :
Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
A second-order in time and fourth-order in space, alternating direction implicit finite difference time domain (ADI-FDTD) scheme is presented for radio-wave propagation in a isotropic collisionless plasma. At the same time, the unconditional stability of the higher order ADI-FDTD formulation for plasma is analytically proved. By analysis of the growth factor, the numerical dispersion relation is derived. In addition, the numerical dispersion errors are investigated. From the error analysis and phase velocity data, it is argued that the proposed approach will significantly minimize the dispersion errors compared to the ADI-FDTD method.
Keywords :
dispersion (wave); error analysis; finite difference time-domain analysis; plasma electromagnetic wave propagation; radiowave propagation; EM propagation; alternating direction implicit finite difference time domain scheme; error analysis; higher order ADI-FDTD method; isotropic collisionless plasma; numerical dispersion errors; numerical dispersion relation; phase velocity data; radiowave propagation; Computer errors; Dispersion; Educational institutions; Finite difference methods; Information science; Maxwell equations; Nuclear and plasma sciences; Plasma stability; Space technology; Time domain analysis; Higher Order ADI-FDTD; dispersion errors; plasma;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4076-4
DOI :
10.1109/MAPE.2009.5355686
