Title :
Wave reflection properties of moving conducting surfaces at normal incidence with Lorentz-FDTD method
Author :
Kui-Song, Zheng ; Jian-Zhou, Li ; Gao, Wei ; Jia-Dong, Xu
Author_Institution :
Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
A new Lorentz-FDTD method is proposed to analyze scattering fields of moving conducting bodies in this paper. The transformation formulas of electromagnetic field components, space components and time variable are discussed by using Lorentz transformation between two inertial systems. The total-field scattering-field boundary condition is built to introduce an incident plane wave in the rest system of moving bodies. The reflection wave of one dimensional moving conducting surface is simulated with the proposed Lorentz-FDTD method. Numerical results show that the reflection wave suffers a frequency shift. Also, the range of frequency shift is a function of the moving velocity of bodies.
Keywords :
conducting bodies; electromagnetic wave reflection; electromagnetic wave scattering; finite difference time-domain analysis; Lorentz-FDTD method; electromagnetic field components; frequency shift; incident plane wave; inertial systems; moving conducting bodies; one dimensional moving conducting surface; scattering field analysis; time variable; total-field scattering-field boundary condition; wave reflection property; Conductors; Finite difference methods; Frequency modulation; Reflection; Scattering; Surface waves; Time domain analysis; FDTD; Lorentz transformation; moving; reflection wave;
Conference_Titel :
Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2012 8th International Symposium on
Conference_Location :
Poznan
Print_ISBN :
978-1-4577-1472-6
DOI :
10.1109/CSNDSP.2012.6292653
