前馈偏置卡塞格伦天线低轮廓设计  

Design on Front-fed Offset Cassegrain Antenna with Low Contour

作　　者：康小勇[1] 路志勇[2] 宋长宏[2] 

机构地区：[1]中国交通通信信息中心,北京100011 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2011年第12期44-46,共3页Radio Engineering

摘　　要：低轮廓卫星通信天线不仅具有很好的应用前景,而且具有重要的理论研究价值。前馈偏置卡塞格伦天线不仅具有较高的效率,而且可实现Ku频段和Ka频段双频段共用。给出了前馈偏置卡塞格伦天线实现低轮廓设计的3个步骤:合理配置各参数,使天线高度达到可以满足要求的值;进行椭圆口面赋形设计,达到天线电气所需要的等效口径面积;选择主面的旋转轴,保证主面转轴后电气性能和天线高度变化不大。The satellite communication antenna with low contour has good application prospective and important research value. The front-fed offset Cassegrain antenna has high efficiency and can be used in both Ku band and Ka band. The paper presents the three steps in the design of front-fed offset Cassegrain antenna with low contour： firstly, configuring the parameters reasonably in order to make the height of the antenna be the demanded value; secondly, designing the aperture into elliptical shape to make the antenna have the demanded equivalent aperture area; finally, choosing the revolving axis of the main reflector in order to make the electric performance and height of the antenna change little.

关 键 词：低轮廓 卫星通信天线 前置偏置卡塞格伦天线 椭圆口面 

分 类 号：TN82[电子电信—信息与通信工程]