三镜波束波导在高功率微波天线中的应用  

Application of three-reflector beam waveguide to HPM radiating antenna

作　　者：秋实[1,2] 刘国治[2] 焦永昌[1] 黄文华[2] 侯青[2] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,西安710071 [2]西北核技术研究所,西安710024

出　　处：《强激光与粒子束》2010年第1期131-134,共4页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目

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。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.

关 键 词：高功率微波 波束波导 卡塞格仑天线 多模喇叭 

分 类 号：TN011[电子电信—物理电子学]