【摘要】 以往使用的远场方法在确定现代天线性能方面日益显得力不从心 ,这主要是受距离、天线、多路反射、保密性等因素的影响 ,而近场方法通常能经济有效地解决上述问题 .基于近场理论论述了平面近场中复杂口径场上高性能天线主极化和交叉极化的确定方法 ,并讨论了测量中的几个关键问题 .针对某型双极化高交叉极化鉴别度天线进行了实际测量 ,测量结果表明该方法具有很高的工程实用价值 .更多还原

【Abstract】 The Far Field techniques used in the past are becoming less capable of determining the performance of advanced antennas. This is due to a variety of problems, including distance, weather effects, multipath, and security. The Near Field measurement techniques can often solve many of these problems in a very economic and efficient manner. Based on the near field measurement theory, this paper deals with the determination of primary polarization and cross polarization of high XPD antennas in a complex aperture field, and discusses several key problems of measurement. The practical measurements of dual polarization antennas are presented. This new approach is of great practical value in engineering.更多还原