Low-profile checkerboard electromagnetic band-gap surface

摘要

In this paper, low-profile checkerboard Electromagnetic Band-Gap (EBG) surface maintaining wide bandwidth performance is proposed. The EBG surface is composed of two kinds of unit cells to make destructive interference in bore-sight. To obtain RCS reduction for wideband, 180° phase difference points of unit cells are placed at proper frequencies. The height of the EBG surface is 3.175 mm and the RCS reduction is achieved from 8 GHz to 16 GHz whose the operation bandwidth is 66.7%.