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Scattering of arbitrarily large targets above a ground using steepest descent path integration  

Lee, Seung-Hak (School of Electrical Engineering and Computer Science Kyungpook National University)
Kim, Che-Young (School of Electrical Engineering and Computer Science Kyungpook National University)
Lee, Chang-Won (School of Electrical Engineering and Computer Science Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.39, no.7, 2002 , pp. 38-45 More about this Journal
Abstract
This paper derives the electric field integral equation to calculate scattering from arbitrary large target above and radiating of an electric line source within a lossy ground. Sommerfeld’s type integral requires a lot of time to calculate and has some difficulties and limitations for an analysis region. But SDP (steepest descent path) integration gives fast calculation of the integral, and the result shows that SDP integration has the validity for all over the analysis region with fast evaluation. Moment method with SDP integration is used to calculate the scattering of an arbitrary large conducting target and the results are compared with that of the numerical integration with Gaussian quadrature rule and GPOF (generalized pencil of function) method.
Keywords
EFIE; GPOF; SDP; Scattering; Large target;
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