Lightning Strike Protection of Radomes
Lightning Strike Protection of Radomes
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DOI：
10.1109/emceurope.2019.8871944
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发表时间：
2019-09
期刊：
影响因子：
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通讯作者：
C. Karch;Christian Paul;F. Heidler
中科院分区：
文献类型：
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作者：
C. Karch;Christian Paul;F. Heidler
飞机上的天线罩是遭受雷击时最容易损坏的外部飞机部件。天线罩壁由介电材料制成，不会对与闪电或大气风暴条件相关的外部电磁场提供天线电磁屏蔽。天线结构是主要的电应力产生源，并且是雷击的首选目标。天线罩的保护通常是通过组合几个适当类型和长度的转向器来实现的。分段带和实心带是两种常见类型，两者都旨在强制形成雷电弧路径。然而，天线方向图可能会受到保护方案的强烈影响。因此，有必要优化整体保护特性。介绍了典型无人机机载天线罩防雷设计所需的实验高压和大电流程序。
Antenna radomes on an aircraft are the most vulnerable external aircraft parts in the event of a lightning strike. The radome wall is made from dielectric materials, offering no EM screening of the antenna to the external EM fields associated with lightning or atmospheric storm conditions. The antenna structure presents a major electrical stress raiser and is a preferred target for a lightning strike. The protection of radomes is usually accomplished through a combination of several diverters of adequate type and length. Segmented and solid strips are two customary types and both aims to force the lightning arc path. However, the antenna pattern might be strongly influenced by protection schemes. Therefore, it is necessary to optimize overall protection characteristics. The experimental high voltage & high current procedures needed for a lightning protection design of an airborne radome for a typical UAV are presented.