Title :
Numerical modeling of electromagnetic signal propagation in a time-varying medium
Author :
Nerukh, A.G. ; Yemelyanov, K.M. ; Fedotov, F.V.
Author_Institution :
Kharkov Tech. Univ. of Radio Electron., Ukraine
Abstract :
The transformation of plane electromagnetic wave and a Gaussian beam in a medium with permittivity and conductivity changing in time as a finite sequence of rectangular periodic pulses has been considered. The solution to the nonstationary electromagnetic problem has been obtained using the direct numerical calculation method comparison with the exact solution of the test problem has been also performed. Numerical results for the different pulse parameters and initial fields have been presented. An original software for the computer modeling of electromagnetic wave propagation in a time-varying medium for arbitrary initial fields and different laws of changing in medium parameters has also been created.
Keywords :
Volterra equations; electrical conductivity; electromagnetic fields; electromagnetic wave propagation; inhomogeneous media; integral equations; permittivity; EM wave propagation; Gaussian beam; Volterra integral equation; computer modeling; conductivity; direct numerical calculation method; electromagnetic signal propagation; electromagnetic wave propagation; exact solution; finite sequence; initial fields; medium parameters; nonstationary electromagnetic problem; numerical modeling; numerical results; periodic media; plane electromagnetic wave propagation; pulse parameters; rectangular periodic pulses; test problem; time-varying medium; Beams; Conductivity; EMP radiation effects; Electromagnetic modeling; Electromagnetic propagation; Electromagnetic scattering; Numerical models; Performance evaluation; Permittivity; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.874908
