Transient Phenomenon of Electromagnetic Waves by Time-Dependent Resistive Screen in Waveguide

Michinari SHIMODA  Ryuichi IWAKI  Masazumi MIYOSHI  Oleg A. TRETYAKOV  

IEICE TRANSACTIONS on Electronics   Vol.E86-C    No.11    pp.2176-2183
Publication Date: 2003/11/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Analytical and Simulation Methods for Electromagnetic Wave Problems)
electromagnetic waves,  transient phenomenon,  time dependent resistivity,  Fourier analysis,  

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The transient phenomenon of electromagnetic waves caused by a time dependent resistive screen in a waveguide is treated. A boundary-value problem is formulated to describe the phenomena, in which the resistivity of the screen varies from one steady state to another in dependence on time. Application of Fourier analysis derives an integral equation, which is approximately solved by the method of least-squares. From the solution of the equation, the transient field is obtained by the inverse Fourier transform. By the use of the incomplete Lipschitz-Hankel integral for the computation of the field, numerical examples showing typical transient phenomenon are attached.