口径天线远场时域分析  

Analysis on Far-Zone Field of Aperture Antennas in Time Domain

作　　者：苏文然[1] 张晨新[1] 王光明[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《上海航天》2009年第2期19-21,44,共4页Aerospace Shanghai

摘　　要：根据惠更斯等效原理,用直接时域法,基于远场近似推导了口径天线瞬态远场时域解析表达式,给出了主、偏轴方向远场辐射特性。分析和数值计算结果表明:所得远场公式简单,计算正确、可靠,可用于口径天线的设计和测量。According to the Hugens equivalent principle, the analytical expressions of transient far-zone field radiation for aperture antennas were derived using the method of the direct time domain based on far-zone field approximation in this paper. The radiation features of the main and offset axis were given out. The analysis and numerical results showed that the formulae of the far-zone field were simple and the computation was correct and reliable, which could be used in the design and measurement for the aperture antennas.

关 键 词：口径天线 解析表达式 时域 远场 惠更斯等效原理 

分 类 号：TN820[电子电信—信息与通信工程]