Abstract
When calculating electromagnetic scattering using method of moments (MoM), integral of the singular term has a significant influence on the results. This paper transforms the singular surface integral to the contour integral. The integrand is expanded to Taylor series and the integral results in a closed form. The cut-off error is analyzed to show that the series converges fast and only about 2 terms can agree well with the accurate result. The comparison of the perfect electric conductive (PEC) sphere's bi-static radar cross section (RCS) using MoM and the accurate method validates the feasibility in manipulating the singularity. The error due to the facet size and the cut-off terms of the series are analyzed in examples.
| Original language | English |
|---|---|
| Article number | 6850216 |
| Pages (from-to) | 386-392 |
| Number of pages | 7 |
| Journal | Journal of Systems Engineering and Electronics |
| Volume | 25 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 2014 |
Keywords
- cut-off error
- method of moments (MoM)
- radar cross section (RCS)
- series
- singular term
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