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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.17 No.2
- 발행연도
- 2017.4
- 수록면
- 91 - 97 (7page)
이용수
초록· 키워드
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An accurate and efficient evaluation for hypersingular integrals (HIs), strongly singular integrals (SSIs), and weakly singular integrals (WSIs) plays an essential role in the numerical solutions of 3D electromagnetic scattering problems. We derive analytic formulas for WSIs based on Stokes’ theorem, which can be expressed in elementary functions. Several numerical examples are presented to validate these analytic formulas. Then, to show the feasibility of the proposed formulations for numerical methods, these formulations are used with the existing analytical expressions of HIs and SSIs to correct the near-field interaction in an iterative physical optics (IPO) scheme. Using IPO, the scattering caused by a dihedral reflector is analyzed and compared with the results of the method of moments and measurement data.
목차
Abstract
I. INTRODUCTION
Ⅱ. LOCAL COORDINATES
Ⅲ. ANALYTIC FORMULAS FOR WSIS
Ⅳ. NUMERICAL VERIFICATION OF WSIS
Ⅴ. THE APPLICATION OF NC TO IPO
Ⅵ. CONCLUSION
REFERENCES
참고문헌 (17)
참고문헌 신청
W. C. Gibson, The Method of Moments in Electromagnetics. Boca Raton, FL: Chapman and Hall/CRC, 2007.
A. J. Poggio and E. K. Miller, Integral equation solutions of three-dimensional scattering problems, in Computer Techniques for Electromagnetics, R. Mittra, Ed. Oxford: Pergamon Press, 1973, pp. 159-260.
C. Muller, Foundations of the Mathematical Theory of Electromagnetic Waves. Berlin: Springer-Verlag, 1969.
D. Dunavant, High degree efficient symmetrical Gaussian quadrature rules for the triangle, International Journal for Numerical Methods in Engineering, vol. 21, no. 6, pp. 1129? 1148, 1985.
S. M. Rao, D. R. Wilton, and A. W. Glisson, Electromagnetic scattering by surfaces of arbitrary shape, IEEE Transactions on Antenna and Propagation, vol. 30, no. 3, pp. 409? 418, 1982.
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