VALIDITY REGIONS OF THEORETICAL MODELS FOR ESTIMATING THE RCS OF LOSSY DIELECTRIC CYLINDERS

  • Hong, Jin-Young (Department of Radio Science and Communication Engineering, Hongik University) ;
  • Kwon, Soon-Gu (Department of Radio Science and Communication Engineering, Hongik University) ;
  • Oh, Yi-Sok (Department of Radio Science and Communication Engineering, Hongik University)
  • Published : 2007.10.31

Abstract

This paper presents an examination of theoretical scattering models for radar cross sections (RCS) of lossy dielectric cylinders, such as exact analytical solution, low frequency approximation (Rayleigh) and high frequency approximation (Physical Optics). The validity regions of the PO and Rayleigh models are closely examined with exact solution in terms of various wavelengths and dielectric constants of a circular cylinder. And also this paper examines the PO and Rayleigh models for back and forward scatter RCS of a cylinder at various incidence angles and polarizations. It was found that the PO and Rayleigh model have their validity regions for estimating the RCS of a circular cylinder.

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