Abstract
The investigation of how to control the microwave scattering from strong scattering sources has vital applications in military and civilian areas. As a typical target, a rightangle dihedral corner reflector has been extensively investigated because of its strong electromagnetic scattering over a wide observation angle range. In this paper, a right-angle dihedral corner reflector with three loading conditions of the camouflage grass described in our previous investigation is discussed to investigate the radar cross section (RCS) reduction effect for the typical target. For different RCS reduction effects of the camouflage grass loading conditions, which include paste, cover and shield, the calculated results and the measurement results are presented and compared. The loading of camouflage grass greatly reduces the RCS of the corner reflector over a wide angle range at 10 GHz and a broad band from 4 GHz to 18 GHz. The paste loading condition of camouflage grass achieves the best RCS reduction effect. Then, the difference in the monostatic RCS curves is analyzed and explained by multiple scattering effects. The advantages of employing camouflage grass lie in its ability to clearly reduce the RCS of the dihedral corner reflector without shaping the targets or use absorbing materials.
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