Effect of ray divergence factor in high frequency analysis of concave scatterers

High frequency ray based methods are best suitable methods for electromagnetic analysis of electrically large concavities those includes aircraft cabin EM analysis, conformal array analysis, radar cross section analysis of ducts etc. The ray divergence factor has a great impact in EM analysis of electrically large structures as the ray diverges each time it reflects through a curved surface. The mathematical formulation of ray divergence factor for curved surfaces and their overall effect on EM analysis has been presented here.