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Unconditionally Stable Analysis of Transient Scattering from Conductors Using Time-Domain Combined Field Integral Equations  

정백호 (호서대학교 전기정보통신공학부)
서정훈 (호서대학교 대학원 정보통신공학과)
이원우 (육군사관학교 전자공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.40, no.8, 2003 , pp. 340-348 More about this Journal
Abstract
In this paper, we propose a novel formulation to solve a time-domain combined field integral equation (CFIE) for analyzing the transient electromagnetic scattering response from closed conducting bodies. Instead of the conventional marching-on in time (MOT) technique, tile solution method in this paper is based on the moment method that involves separate spatial and temporal testing procedures. Triangular patch vector functions are used for spatial expansion and testing functions for three-dimensional arbitrarily shaped closed structures. The time-domain unknown coefficient is approximated as a basis function set that is derived from tile Laguerre functions with exponentially decaying functions. These basis functions are also used as the temporal testing. Numerical results computed by the proposed method arc stable without late-time oscillations and agree well with the frequency-domain CFIE solutions.
Keywords
CFIE; time domain; transient; scattering; Laguerre;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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