| Abstract:To study the application of Radar Absorbing Coating (RAC) in a double S-shaped exhaust system, the distribution of scat?
tering sources, the reduction in Radar Cross Section (RCS), and the influence of coating position on scattering properties were simulated
and analyzed using the Shooting and Bouncing Rays (SBR) method. The results show significant polarization differences in the typical
double S-shaped exhaust system, with the scattering sources mainly located in the terminal structure, the curved flow channel, and the
nozzle outlet. After these parts are coated, the RCS reduction is 78.0% in the X-band and 72.2% in the Ku-band. The curved flow channel
is one of the strong scattering sources, contributing significantly to the total RCS. The RCS of the exhaust system can be efficiently reduced
by applying RAC at this position. Depending on the coating schemes, the RCS reductions are 56.9%~78.0% and 49.5%~72.2% in the X-
band and Ku-band, respectively. |
