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简要阐述了矩形波导缝隙天线的相关理论,介绍了宽边波导缝隙驻波阵的设计方法及窗函数的应用。在所得结论基础上,着重研究将窗函数应用于矩形波导缝隙阵列天线对天线参数的影响。利用Ansoft HFSS高频仿真软件仿真分析得知,窗函数的应用对降低最高副瓣电平以及改善驻波比有指导性的作用。
The related theory of rectangular waveguide slot antenna is briefly introduced. The design method of slot standing wave array of wide-side waveguide and the application of window function are introduced. Based on the conclusion, the influence of the window function on the antenna parameters of rectangular waveguide slot array antenna is emphatically studied. Using Ansoft HFSS high-frequency simulation software simulation analysis shows that the application of window function to reduce the maximum sidelobe level and improve the standing wave ratio has an instructive role.