【作者】 汪月清； 薛正辉； 李伟明； 任武； 王小谟；

【Author】 WANG yueqing;XUE zhenghui;LI weiming;REN wu;WANG xiaomo;School of Information and electronics,Beijing Institute of Technology;China Academy of Electronics and Information Technology;

【机构】 北京理工大学信息与电子学院； 中国电子科学研究院；

【摘要】 本文通过建立分布式阵列天线及远场目标的UTD模型来分析分布式阵列天线的辐射特性。文章首先利用存在金属平板时半波振子的辐射方向图验证所建模型的正确性,然后分析了远场目标对分布式发射天线阵的来波信号产生回波时接收天线区域的时频电场幅相分布情况。该研究是分布式阵列天线的设计与优化、系统后端的波束合成与目标检测的前提和基础,具有很好的理论指导意义。更多还原

【Abstract】 In this paper,a UTD model of distributed antenna array and object in the far-field is constructed to analyze the radiation property of the distributed antenna array. The accuracy of this model is proved through comparing the radiation patterns of a wire antenna near an electrically large rectangular plate computed by this model with those from the FEKO software. Then,in the situation of existing an object in the far-field,the distribution of the amplitude and phase of the electric field near the receive antenna is analyzed. This research is the presupposition and basis in the design and optimization for the distributed antenna array,DBF and target detection and has better theoretical guiding significance.更多还原