EDUCATION OF ELECTROMAGNETIC PENETRATION THROUGH NARROW SLOTS IN CONDUCTING SCREEN BY PARALLEL PLATE LOADING

평행평판 장하에 의한 슬릿 침투 전자파의 저감 특성

This paper presents the reduction characteristics of penetrated electromagnetic fields through a narrow slot aperture in a planar conducting screen of infinite extent. When a plane wave is excited to the narrow slot, the aperture electric field is controlled by the parallel plate connected on the slot. The magnitude of penetrated electromagnetic fields through a narrow slot is controlled by electric field distributions on the slot aperture. An integral equation for the aperture electric field on narrow slots is derived and solved by applying Galerkin's method of moments. The results show that the magnitude of the penetrated electromagnetic field can be effectively reduced by installing the parallel plate on the slot aperture.