The Effect of the Dimensions of the Body on the Radar Cross Section (RCS)

Abstract

Scattering is the reflection of electromagnetic radiation in various directions, as a result of gas and dust particles located in space. The form of electromagnetic scattering problem for the Body of Revolution (BOR) that are generated by the rotation of an axis called the axis of symmetry because of the symmetry advantages, surface currents can be represented by a fourier series to express the basic function of the current and the test function. Scattering problem can be solved by the equations of the Electric Field Integral Equation (EFIE) and Magnetic Field Integral Equation (MFIE), Galerkin approach was chosen as a method of calculation in this field. The principle of this method depends on the choice of the weighting function that is equal to the complex conjugate of the basis function. The basis function is selected accurately to obtain good results for the scattering problem which is difficult to solve theoretically due to the special boundary conditions for this problem, This method requires a large number of basis functions and testing functions to suit the exact solution. in addition to the Method of Moments (MOM) which is a numerical method for solving electrical and magnetic integrals equations which can calculate the Radar Cross Section (RCS) for the conducting bodies.