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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

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

Electric Field Integral Equation (EFIE);Half-Space Scattering;Image Theory;RWG Basis;Virtual Vertex

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