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.
出处
《无线电工程》
2011年第12期44-46,共3页
Radio Engineering
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
low contour
satellite communication antenna
front - fed offset Cassegrain antenna
elliptical aperture
