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《Chinese Journal of Radio Science》 2004-02
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A stable solution of time-domain electric-field integral equation

ZHAO Yan-wen NIE Zai-ping XU Jian-hua WU Sheng-bo (School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu Sichuan 610054,China)  
A new stable and accurate numerical approach using time-domain electric integral equation (TDEFIE) is presented to calculate transient scattering from arbitrarily shaped conducting bodies. The derivative of the magnetic vector potential is approximated with a central finite-difference,the scalar potential is time-averaged by dividing it into two terms,and both the scalar and vector potential terms are evaluated at the centroids of the patch. This approach combining with an implicit method produces stable and accurate results without resort to any averaging processes. Simulation results demonstrate the stability and accuracy of the approach.
【Fund】: 国家自然科学基金资助项目 (6 0 3710 0 9)
【CateGory Index】: TN011
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