一种低频外露机载天线隐身设计

Improved Methods for Stealth of Low-Frequency Exposed Antenna

针对低成本准隐身飞机,探讨了一种低频外露机载天线的隐身设计,提出了一系列的隐身设计措施(例如优化天线外形、改变安装方式、在天线罩表面涂敷吸波材料等);经过隐身仿真、隐身测试等手段,获取了天线在不同频点、不同极化下的RCS均值,并通过仿真、测试数据对比,验证了隐身改进设计的有效性,并为其他外露物隐身设计提供了设计依据和手段。

In order to decline designing cost,the methods for the stealth of low-frequency exposed airborne antenna was proposed（ such as to optimize appearance of antenna,change the way for installation,coat absorbing materials on the cowling of the antenna and so on）. To verify the availability for above means,the comparison was done between stealth simulation and test,which is carried out to obtain these mean values of RCS for different frequency and polarization. The present method can provide guidance for the stealth design in the future.