【摘要】 通过对波束波导馈电卡塞格仑天线工作原理的分析,论述了波束波导在高功率微波辐射天线中的应用及设计方法,重点介绍了一套利用波束波导馈电高功率微波辐射天线。该天线利用由三面反射镜组成的波束波导对一个由两个抛物面镜组成的双反射面天线进行馈电,实现了波束的快速扫描。该天线工作在X波段时,功率容量大于1GW,天线增益大于50dB。更多还原

【Abstract】 Beam waveguide (BWG) feed system, composed of a series of flat reflectors, conicoid mirrors and lens can use conicoid mirror and flat mirror as rotating joint to implement mechanical scan of antenna in electromagnetic wave transmission.In this paper, the operating principle of the Cassegrain antenna fed by beam waveguide is analyzed, and the design method of the beam waveguide for the HPM radiating antenna is discussed. Emphasis is placed on a practical HPM radiating antenna fed by beam waveguide. In the antenna system, a dual-reflector antenna with two paraboloids is fed by the beam waveguide feeding system formed by three reflectors, realizing quick scanning of the beam. The antenna can operate at X-band with more than 1 GW power capacity, and its gain is greater than 50 dB.更多还原