基于电磁带隙结构的无源/有源电磁对消隐身研究

Comparing with the traditional stealth technique, the electromagnetic cancellation stealth technique can reduce the RCS of the object by retaining the shape and not increasing the loading. The electromagnetic cancellation stealth technique exhibit the nicely forward looking for enhancing the stealthy performance of the aircraft, however, the development and application of the technique are baffled by the design of the cancellation source of the complex shape object and the adapted cancellation source.. This thesis is firstly focused on the application the electromagnetic band-gap (EBG) structure to the passive and the active electromagnetic cancellation stealth technique. By loading the EBG structure or PIN-EBG structure on the object, the reflection phase can be controlled and the interferential wave is formed, which will propose a new way to solve the problem of the design of the cancellation source of the complex shape object and the adapted cancellation source. The result of the research will provide the big progress of the stealthy aircraft of our country, which is a great significance for the national defence construction of our country.

与传统隐身技术相比，电磁对消隐身技术能够在不改变目标外形且几乎不增加载荷的条件下实现目标的雷达散射截面积（RCS）缩减，为提高飞行器隐身性能展现出诱人的前景，但复杂形状目标的对消源以及自适应对消源的设计问题一直制约着该技术的发展和应用。.本项目首次提出将电磁带隙（EBG）结构分别应用于无源和有源电磁对消隐身技术，通过在目标表面加载EBG结构或PIN-EBG结构（EBG结构上加载变容二极管PIN），利用EBG结构或PIN-EBG结构对电磁波反射相位的控制特性，形成干涉相消反射波，为实现复杂形状目标的无源电磁对消隐身和自适应有源电磁对消隐身提供一种新方法。研究成果将为我国隐身飞行器的跨越式发展提供新技术支持，对我国的国防建设具有重大的意义。

与传统隐身技术相比，电磁对消隐身技术能够在不改变目标外形且几乎不增加载荷的条件下实现目标的雷达散射截面积（RCS）缩减，为提高飞行器隐身性能展现出诱人的前景，但复杂形状目标的对消源以及自适应对消源的设计问题一直制约着该技术的发展和应用。. 本项目提出将电磁带隙（EBG）结构分别应用于无源和有源电磁对消隐身技术，通过在目标表面加载EBG 结构或PIN-EBG 结构（EBG 结构上加载变容二极管PIN），利用EBG 结构或PIN-EBG 结构对电磁波反射相位的控制特性，形成干涉相消反射波，为实现复杂形状目标的无源电磁对消隐身和自适应有源电磁对消隐身提供一种新方法。研究成果将为我国隐身飞行器的跨越式发展提供新技术支持，对我国的国防建设具有重大的意义。