Compact EBG Based Checkerboard Surface for Radar Cross Section Reduction

In this paper, the reduction in Radar cross section (RCS) is achieved by using a checkerboard which is a composition of two different compact EBG structures. The checkerboard surface has two special EBG patterns, each located in a quadrant of the same ground plane, which can use special features of the EBG pattern to achieve a 10dB RCS reduction. The direction of scattered field can be altered by radar target to minimize the RCS. This alteration can be achieved by covering the target surface with a checkerboard of alternating EBG structures. The designed ch is engineered using Ansys High-Frequency Structure Simulator (HFSS), and the results were compared with RCS results for a perfect electrical conductor (PEC) surface.