Electromagnetic Signal Propagation in a Lorentz Dispersive Medium

被引：3
|
作者：
Ciarkowski, Adam [1 ]
机构：
[1] Warsaw Univ Life Sci, Fac Appl Informat & Math, Nowoursynowska 159, PL-02776 Warsaw, Poland
来源：
INTERNATIONAL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS | 2011年 / 57卷 / 03期
关键词：
Dispersion; Sommerfeld precursor; Brillouin precursor;
D O I：
10.2478/v10177-011-0033-8
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This work is concerned with the propagation of rapidly oscillating electromagnetic (EM) signal in a Lorentz dispersive medium. The problem considered here is 1-dimensional and its exact solution is described by a contour integral defined in a complex frequency plane. With the use of uniform asymptotic techniques, approximate representation for the total field consisting of the Sommerfeld and Brillouin precursors and the main signal is obtained. The effect of the rate of envelope changes, as well as of carrier frequency on the shape of the total signal is examined.
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页码：251 / 255
页数：5
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