利用点源阵模型分析微带贴片天线  

Microstrip patch antennas with point source array model

作　　者：孙思扬[1] 吕英华[1] 高攸纲[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876

出　　处：《电波科学学报》2009年第3期514-517,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(编号:60671055)

摘　　要：提出了一种新的微带贴片天线远场分析模型。与传统的等效磁流分析方法不同,通过对贴片天线表面电流的合理假设,利用点源阵及波瓣图乘法原理,将微带天线看作半波阵子的连续阵来分析,求得了其辐射场。将结果与其他模型的结果进行了比较,证明了该方法的有效性。A novel model for microstrip patch antenna is proposed in this paper. Different from the traditional ones based on the equivalent magnetic current radiation, the new method is based on an educated guess for the current density distribution on the upper surface of antennas. From the current distribution and the point source array, the antenna can he considered as an array of half wave dipoles and its radiation pattern can be calculated. Finally, the results are compared with other models. Accordingly, the method in this paper is confirmed.

关 键 词：微带贴片天线 电流分布 点源阵 半波阵子 

分 类 号：TN82[电子电信—信息与通信工程]