“时间窗”对天线时域平面近场测试结果的影响  

Effect of time-gate on antenna planar near-field measurement in time domain

作　　者：薛正辉[1] 楼世平[1] 杨仕明[1] 王楠[1] 刘瑞祥[1] 

机构地区：[1]北京理工大学信息科学技术学院电磁兼容与微波系统实验室,北京100081

出　　处：《电波科学学报》2007年第1期158-165,共8页Chinese Journal of Radio Science

摘　　要：天线时域近场测试技术是一种新兴的、测试宽带场和工作在窄脉冲激励下天线辐射场的高效的测试技术。因为它可以利用“时间窗”技术进行信号处理,使其相对频域测试具有独特的优势。本文在已建立的天线时域近场测试系统的基础上,从实验的角度,对“时间窗”参数在天线时域平面近场测试中的影响进行验证分析。举例了三个波段标准天线方向图的测试分析结果,并得出初步结论。The technology of antenna near-field measurement in time domain can measure the broad-band fields and radiation fields of antenna excited by short-duration time pulse. Compared with frequency-domain measurement technology, one of its unique characteristic is the application of time-gate technique for signal processing. On basis of the time-domain experimental system built, the effect of time-gate on antenna planar near-field measurement in time domain is analyzed. The measured results of antenna patterns at three frequecy bands and analysis conclusions are presented in this paper.

关 键 词：天线测试 时域近场 时间窗 

分 类 号：TN820[电子电信—信息与通信工程] TN828.4