Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지
DOI QR코드

DOI QR Code

Angular Effect of Virtual Vertices Inserted to Treat The Boundary Edges on an Infinite Conducting Surface

  • Hwang, Ji-Hwan (Dept. of Electronic Information & Communication Engineering, Hongik University) ;
  • Kweon, Soon-Koo (Dept. of Electronic Information & Communication Engineering, Hongik University) ;
  • Oh, Yisok (Dept. of Electronic Information & Communication Engineering, Hongik University)
  • Received : 2012.11.28
  • Accepted : 2013.02.27
  • Published : 2013.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study presents the angular effects of virtual vertices inserted for effective treatment of the boundary edge laid on an infinite conducting surface in a half-space scattering problem. We investigated the angular effects of virtual vertices by first computing the radar cross section (RCS) of a specific scatterer; i.e., a tilted conducting plate in contact with the ground surface, by inserting the virtual vertex in half-space. Here, the electric field integral equation is used to solve this problem with various virtual vertex angles (${\theta}_{\nu}$) and conducting plate inclination angles (${\theta}_r$) ranging from $0^{\circ}$ to $180^{\circ}$. The effects of the angles ${\theta}_{\nu}$ and ${\theta}_r$ on the RCS computation are clearly shown with numerical results with and without the virtual vertices in free- and half-spaces.

Keywords

References

  1. S. M. Rao, D. R. Wilton, and A. W. Glisson, "Electromagnetic scattering by surfaces of arbitrary shape," IEEE Trans. Antennas Propag., vol. AP-30, no. 3, pp. 409-418, May 1982.
  2. Pasi Yla-Oijala, Matti Taskinen, "Calculation of CFIE impedance matrix elements with RWG and n${\times}$ RWG functions," IEEE Trans. Antennas Propag., vol. 51, no. 8, pp. 1837-1846, Aug. 2003. https://doi.org/10.1109/TAP.2003.814745
  3. Y. Q. Hu, J. J. Ding, D. Z. Ding, and R. S. Chen, "Analysis of electromagnetic scattering from dielectric objects above a lossy half-space by multiresolution preconditioned multilevel fast multipole algorithm," IET Microw. Antennas Propag., vol. 4, Iss. 2, pp. 232- 239, 2010. https://doi.org/10.1049/iet-map.2008.0265
  4. J. -H. Hwang, Y. Oh, "Investigation of the effect of boundary edges placed on an infinite conducting surface and effective treatment using virtual vertices," IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 913-916, Aug. 2012. https://doi.org/10.1109/LAWP.2012.2212172
  5. Y. Oh, Y. M. Jang, and K. Sarabandi, "Full-wave analysis of microwave scattering from short vegetation: an investigation on the effect of multiple scattering," IEEE Trans. Geosci. Remote Sensing, vol. 40, no. 11, pp. 2522-2526, Nov. 2002. https://doi.org/10.1109/TGRS.2002.805085
  6. I. V. Lindell, E. Alanen, "Exact image theory for the sommerfield half-space problem, part I: vertical magnetic dipole," IEEE Trans. Antennas Propag., vol. AP-32, no. 2, pp. 126-133, Feb. 1984.
  7. I. V. Lindell, E. Alanen, "Exact image theory for the sommerfield half-space problem, part II: Vertical electric dipole," IEEE Trans. Antennas Propag., vol. AP-32, no. 8, pp. 841-847, Aug. 1984.
  8. W. C. Gibson, The Method of Moments in Electromagnetics, Chapman & Hall/CRC, Boca Raton, FL, pp. 161-270, 2008.
  9. D. R. Wilton, S. M. Rao, A. W. Glisson, D. H. Schaubert, O. M. Al-bundak, and C. M. Butler, "Potential integrals for uniform and linear source distributions on polygonal and polyhedral domain," IEEE Trans. Antennas Propag., vol. AP-32, no. 3, pp. 276- 281, May 1984.
  10. C. T. Tai, Dyadic Green Functions in Electromagnetic Theory, IEEE Press, NJ, 2nd Edition, pp. 92- 95, 1994.
  11. G. T. Ruck, D. E. Barrick, W. D. Stuart, and C. K. Krichbaum, Radar Cross Section Handbook, New York: Plenum, pp. 141-159, 1970.

Cited by

  1. Analysis of Induced Currents on the Dielectric Cube by the Fusion of MoM and PMCHW Integral Equation vol.6, pp.5, 2015, https://doi.org/10.15207/JKCS.2015.6.5.009