Title :
The time-frequency interpretation for transient evolution of wave propagation through dispersive medium
Author :
Xiaoting, Dong ; Yansheng, Jiang ; Wenbing, Wang
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ., China
fDate :
6/1/2001 12:00:00 AM
Abstract :
The propagation of electromagnetic waves in a linear, dispersive Lorentz medium is calculated using the finite-difference time-domain (FDTD) method; their time-frequency (TF) characteristics are studied using the Gabor extension. Numerical results show that the TF spectrum gives a clear interpretation for transient evolution of ultra wideband pulse propagation through a Lorentz medium.
Keywords :
dispersive media; electromagnetic wave propagation; finite difference time-domain analysis; time-frequency analysis; FDTD method; Gabor extension; electromagnetic waves; finite-difference time-domain method; linear dispersive Lorentz medium; time-frequency interpretation; transient evolution; ultra wideband pulse propagation; wave propagation; Delay; Dispersion; Electromagnetic propagation; Electromagnetic transients; Finite difference methods; Microwave propagation; Optical propagation; Time domain analysis; Time frequency analysis; Ultra wideband technology;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.928934
