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Transient Response of Magnetic Field Integral Equation Using Laguerre Polynomials as Temporal Expansion Functions  

정백호 (호서대 전기정보통신공학부)
정용식 (명지대 통신공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.52, no.4, 2003 , pp. 185-191 More about this Journal
Abstract
In this Paper, we propose an accurate and stable solution of the transient electromagnetic response from three-dimensional arbitrarily shaped conducting objects by using a time domain magnetic field integral equation. This method does not utilize the conventional marching-on in time (MOT) solution. Instead we solve the time domain integral equation by expressing the transient behavior of the induced current in terms of temporal expansion functions with decaying exponential functions and Laguerre·polynomials. Since these temporal expansion functions converge to zero as time progresses, the transient response of the induced current does not have a late time oscillation and converges to zero unconditionally. To show the validity of the proposed method, we solve a time domain magnetic field integral equation for three closed conducting objects and compare the results of Mie solution and the inverse discrete Fourier transform (IDFT) of the solution obtained in the frequency domain.
Keywords
Laguerre; transient; scattering; magnetic field; integral equation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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