S 波段低副瓣波导裂缝阵列天线设计

S 波段低副瓣波导裂缝阵列天线设计

内容简介：为了设计一种 S 波段矩形波导窄边裂缝阵列天线,利用等倾角裂缝阵列测试所得的电导值和缝隙谐振长度经曲线拟合得出其余倾角裂缝的电导值和谐振长度,并利用相邻波导裂缝对称排列的方法,有效地抑制了交叉极化,据此研制了由32根开有不同倾角裂缝的线源组成的阵列天线,该天线具有宽带特性,实现了低副瓣,垂直面的交叉极化得到有效抑制.

Abstract：In order to design a S?band low sidelobe slotted waveguide array antenna,equal tilted angle slots array antenna was utilized to test the conductance values and slot resonance length,and the rest tilted angle slots conductance values and reso?nance length were got by fitting curves. And a adjacent waveguide slot symmetric arrangement method effectively suppressed the cross polarization. Accordingly,an array antenna consisting of 32 rows line source with different opened tilted angle slot were de?veloped,which has broadband characteristics and the low sidelobe. The vertical cross polarization of the antenna can be effec?tively suppressed.

作者：方正新, 张玉梅,

关键词：裂缝波导, 阵列天线, 低副瓣, 交叉极化,