Electromagnetic metamaterials have extraordinary electromagnetic characteristics., which make it widely used in the field of aircraft radar radome. However, they contain metallic microstructure units inside; which are easy to become the initial attachment area of lightning. In this paper, the combined gap lightning impulse test of the equivalent plate of electromagnetic metamaterial radome is carried out in experiment. High-speed camera was used to analysis the streamer development process. The interaction mechanism between lightning and metamaterial radome and the attachment characteristics of lightning to radome are analyzed experimentally. The research results are helpful to the lightning protection of electromagnetic metamaterial radome.

电磁超材料具有非凡的电磁特性，使其在飞机雷达天线罩领域得到广泛应用。但是，它们内部包含金属微结构单元；容易成为雷电的初始附着区。本文在实验中进行了电磁超材料天线罩等效板的组合间隙雷电冲击试验。高速摄像机用于分析流光开发过程。通过实验分析了闪电与超材料天线罩的相互作用机理以及闪电对天线罩的附着特性。研究成果有助于电磁超材料天线罩的防雷。