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The time-frequency interpretation for transient evolution of wave propagation through dispersive medium

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3 Author(s)
Dong Xiaoting ; Sch. of Electron. & Inf. Eng., Xi''an Jiaotong Univ., China ; Jiang Yansheng ; Wang Wenbing

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.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:11 ,  Issue: 6 )