Monostatic RCS Computation of Reflector Antennas Using Parabolic Equation

Conference: CEM 2006 - 6th International Conference on Computational Electromagnetics
04/04/2006 - 04/06/2006 at Aachen, Germany

Proceedings: CEM 2006

Pages: 2Language: englishTyp: PDF

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Mallahzadeh, A. R.; Soleimani, M. (Iran University of Science and Technology, Tehran, Iran)
Rashed-Mohassel, J. (University of Tehran, Tehran, Iran)

The parabolic equation method gives accurate results in calculation of scattering from objects with dimensions ranging from one to tens of wavelengths. Solving parabolic equation with the marching method needs limited computer storage even for scattering calculations of large targets. In order to compute monostatic RCS, backward scattered field is required. Parabolic equation separates forward and backward scattered fields. In this paper, first the calculation procedure of monostatic radar cross section using parabolic equation in three dimension is studied and the necessary equations are derived. Backward scattered fields in three dimension are calculated by developing two dimensional method. Monostatic RCS of a reflector antenna has been computed by using a staircase model in the parabolic equation. The results are compared with physical optics results.