Effects of a damaged composite face to the electromagnetic wave transmission characteristics of low-observable radomes

被引：21

作者：

Choi, Ilbeom ^{[1
]}

Kim, Jin Gyu ^{[1
]}

Lee, Dai Gil ^{[1
]}

Seo, Il Sung ^{[2
]}

机构：

[1] Korea Adv Inst Sci & Technol, Sch Mech Aerosp & Syst Engn, Taejon 305701, South Korea

[2] Agcy Def Dev, Taejon 300600, South Korea

来源：

COMPOSITE STRUCTURES | 2011年 / 93卷 / 11期

关键词：

Low-observable radome; Sandwich structure; Impact test; Impact damage; Electromagnetic wave transmission; Free space measurement;

D O I：

10.1016/j.compstruct.2011.05.030

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

E-glass/epoxy composites and aramid/epoxy composites are suitable materials for EM (electromagnetic) transmission systems because they have low dielectric constants, particularly good for the construction of radomes. The low-observable radome not only selectively transmits the EM wave to antenna systems, but also protects the internal antenna system from external impacts. In this work, the radome specimens were made of sandwich constructions composed of composite faces such as E-glass/epoxy composite and aramid/epoxy composite, foam core and an FSS (frequency selective surface). Because the damage to the radomes by external impact load may affect the EM wave transmission characteristics, the EM wave transmission characteristics of various radome specimens were measured using the free space measurement method with respect to impact magnitude. Additionally, the damage characteristics of the radome specimens were observed with respect to the face composite material of the sandwich constructions. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2740 / 2747

页数：8

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