Title :
A 3-D FDTD scheme for the computation of HPM propagation in atmosphere
Author :
Ke Xiao ; Shunlian Chai ; Haisheng Zhang ; Huiying Qi ; Ying Liu
Author_Institution :
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
Focus on the simulation of the dynamics of high power microwave (HPM) ionization of air at atmosphere, we analyze the physical mechanism in the formation of plasma. The magnetohydrodynamic formulations, formed by Maxwell equations coupled with simple fluid description, are applied to describe the ionization procedure. Then, we present a three dimensional (3-D) finite-difference time domain (FDTD) scheme to deal with such problems, of which the computational procedure is discussed in detail. At last, numerical experiments are provided, and some parameters about plasma are analyzed. The theory also predicts the pulse breakdown threshold accurately.
Keywords :
Maxwell equations; finite difference time-domain analysis; magnetohydrodynamics; microwave propagation; 3-D FDTD scheme; HPM propagation computation; Maxwell equations; atmosphere; breakdown threshold; computational procedure; fluid description; high power microwave ionization; ionization procedure; magnetohydrodynamic formulations; physical mechanism; plasma; three dimensional finite-difference time domain; Atmospheric modeling; Equations; Finite difference methods; Ionization; Mathematical model; Plasmas; Time-domain analysis;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
