Abstract: In this paper,the electrical field boundary integral equations for the arbitrary shaped two-dimensional homogeneous asymmetrically anisotropic cylindrical medium are derived based on Green's theorem. On applying the pulse-function expansion and,the point-matching technique,the integral equations can be converted into liner algobraical equations.The monostatic and bistatc radar cross sections of asymmetrically anisotropic circular,square and trianglar cylinders are calculated.

Key words: boundary element methed, electromag-netic scattering, two-dimensional scattering, anisotropic medium, radar cross section