一种径向波导Ku波段空间功率合成器的设计和实现

摘要

For the sake of realizing efficient, broadband and pint-sized power-dividing/combining circuit, the equivalent circuit method was used, and the peripheral probes were distributed in the radial waveguide on the radial direction.The design using HFSS was simulated and optimized.The 4-port and the 8-port power-dividing/combining circuits were actualized.The insertion loss is about 0.5 dB and the bandwidth is wider than 0.5 GHz.The application of this kind of design can decrease the volume of transmitter largely and improve the work efficiency.The simple equivalent-circuit model was deduced for the radial waveguide power dividing/combining circuits.The design was used in project for the first time.%为了实现微波功分/合成电路低损耗、宽频带和小型化,采用等效电路法,外围探针沿径向等距分布在径向波导内.使用HFSS对结构进行仿真、优化,加工制作了四路、八路功分/合成器各一款,损耗在0.5 dB左右,带宽大于0.5 GHz.此类设计的应用可大幅度减小雷达发射机体积,并提高雷达工作效率.首次导出了径向波导功分/合成电路的简洁等效电路模型,此类设计也是首次投入实际应用.