대면 구조 유전체 장벽 방전 플라즈마의 X-Band 내 RCS 저감 효과

Abstract

A dielectric barrier discharge (DBD) plasma generator with a face-to-face multilayer structure for radar cross section (RCS) reduction is designed. The generator includes two electrodes of 16×0.5 cm2 size, facing each other. Because the electrodes are on the plane that is parallel to the direction of the incident wave, the effect of the generator on the RCS of the target is significantly reduced, particularly when compared to conventional parallel plate-type generators. This simplifies the design procedure for the DBD generator and maximizes the effect of the plasma on RCS reduction. For experimental verification, 42 layers of the proposed generator with a distance of 5 mm between the two electrodes are stacked to reduce the RCS of a 20×20 cm2-sized copper plate. Experimental results demonstrated a reduction of approximately 3.2 dB in the RCS in the X-band.