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飞行器缝隙结构特征在其整机结构中的数量众多,会形成较弱的散射源,在雷达隐身探测时不可忽略.在不同极化方式下,对变尺度缝隙结构进行建模,并运用FEKO软件计算X波段时的雷达反射截面(RCS),分别与无缝金属平板和等宽度尺寸金属平板进行对比,计算结果证明变尺度缝隙结构的电磁散射强度随着其宽度尺寸的增大而增强,与缝隙的深度成正比.
The characteristics of aircraft gap structure in the whole structure of a large number of machines will form a weak scattering source in the radar stealth detection can not be ignored.Under different polarization mode, the scale of the gap structure modeling, and the use of FEKO software Radar reflection cross section (RCS) in X-band was calculated and compared with those of metal plate and metal plate of equal width. The calculated results show that the electromagnetic scattering intensity of the variable size slot structure increases with the increase of its width, The depth of the gap is proportional.