带金属盒的月球射电仪天线特性研究  

Characteristics analysis of antennas with metal cases for lunar radio telescope

作　　者：龚莉媛[1] 陈志雨[1] 

机构地区：[1]中国科学院电子学研究所,北京100080

出　　处：《电波科学学报》2007年第4期659-664,共6页Chinese Journal of Radio Science

摘　　要：选择RWG和Costa基函数用矩量法分析了线面结合的天线问题,计算了月球射电仪典型天线的输入阻抗和方向图。给出了单极和双极天线的典型结果,得到了金属盒大小对结果的影响关系。对于双极天线还对比了中馈和边馈两种方式的结果。在计算中,使用了9点高斯积分法处理奇异积分,得到了较好的效果。In this paper, the problem of junction between wire antenna and conducting board is analyzed by the moment method with. RWG and Costa basis functions. The input impedances and patterns of typical lunar radio telescope antennas are obtained, which include monopole and dipole antennas. The impact of metal case size is discussed. For dipole antennas, the results for different types of feed are contrasted. The 9 point Gauss integration is used to treat the integration singularity, which requires small memory with a high precision.

关 键 词：月球射电仪 矩量法 金属盒 线面结合 

分 类 号：TN820[电子电信—信息与通信工程]