Aircraft 1 Computation theory 1 Computational efficiency 1 Diffraction 1 Efficiency 1 FSS radome 1 Flat model Frequency selective surface 1 Frequency selective surface (FSS) 1 Frequency selective surface radome 1 Frequency selective surfaces 1 Frequency-selective surfaces 1 Physical theory of diffraction 1 Radar cross section 1 Radar cross-sections 1 Radomes 1 Shooting and bouncing ray 1 Shooting and bouncing rays 1 flat model 1 physical theory of diffraction (PTD) 1 radar cross section (RCS) 1 shooting and bouncing rays (SBR) 1