Reduction of Electromagnetic Penetration through Narrow Slots in Conducting Screen by Two Parallel Wires

摘要

This letter presents a reduction technique of penetrated electromagnetic fields through a narrow slot in a planar conducting screen. When a plane wave is excited to the narrow slot, the aperture electric field is controlled by the two parallel wires connected on the slot. The magnitude of penetrated electromagnetic fields through a narrow slot is controlled by electric field distributions on the slot aperture. The results show that the magnitude of the penetrated electromagnetic field can be effectively reduced by installing the two parallel wires on the slot.