电波科学学报2023，Vol.38Issue(6)：997-1006,10.DOI:10.12265/j.cjors.2023152
可展收的新型超轻质角反射器设计
Design of a novel ultra lightweight deployable corner reflector
摘要
Abstract
Radar corner reflector plays an role of post-strike in the field of radar countermeasures,which can interfere with the detection of enemy radar and protect important facilities of one's own side.The traditional corner reflector is made of metal plate as the reflecting surface.Although it has the function of strong reflection,its weight is larger.Once it is processed and formed,its shape and size are fixed and the scattering characteristics are single.Therefore,it cannot meet the increasingly complex application requirements.In order to solve the above problems,a design method of novel ultra-lightweight radar corner reflector structure with adjustable radar cross section(RCS)is proposed by considering the weight,scattering characteristics and adjustability of the corner reflector.The method uses carbon fiber rods with high structural strength as the supporting frame and large flexible wire mesh as the reflecting surface of the corner reflector.The structure is designed with the function of unwrapping folding,so that it can be continuously changed between different structural states,so as to achieve the purpose of RCS regulation.In order to verify the feasibility and effectiveness of the design method,a lm aperture 12-unit deployable corner reflector array prototype was developed.The novel radar corner reflector has a weight of only 1.325 kg,and can regulate RCS smoothly through the deployable state switch,and is easy to be loaded and transported,which is suitable for a variety of carrier platforms.After experimental testing,it can achieve substantial regulation of RCS.More than 10 dBsm regulation amplitude can be reached for most frequency bands in the 2-20 GHz band,and it can exceed 30 dBsm for a few frequency bands,which proves that the regulation effect is good.This design method can provide reference for the design of ultra-lightweight corner reflectors with adjustable scattering characteristics.关键词
角反射器/超轻质/RCS调控/金属丝网反射面/结构可变Key words
corner reflector/ultra-lightweight/RCS regulation/wire mesh reflector/variable structure分类
信息技术与安全科学引用本文复制引用
宗亚雳,李帅鹏,马昕宇,杨癸庚,弓明豪..可展收的新型超轻质角反射器设计[J].电波科学学报,2023,38(6):997-1006,10.基金项目
国家自然科学基金(51705423) （51705423）
陕西省自然科学基础研究计划(2020JQ-188) （2020JQ-188）
