一、引言用测量平面近场数据并对测得数据进行数值变换算出远场方向图的方法来求远场方向图的技术已运用多年了。过去在运用这种方法时,测试数据点通常取在矩形抽样栅格上,但矩形抽样也并不总是测量平面近场最有效的方法。随天线电尺寸的增加,测量近场所需抽样点数也随之增加;因此,为减少近场数据的采集时间,就有必要研究其他抽样方法。本文讨论另一种抽样方法,并把它得到的远场数据与用一般矩形抽样方法得到的数据相 I. INTRODUCTION The technique of finding the far-field pattern has been used for many years by measuring the near-field data of the plane and performing numerical transformation on the measured data to calculate the far-field pattern. In the past when using this method, the test data points are usually taken on a rectangular sampling grid, but rectangular sampling is not always the most effective way to measure the plane near field. As the size of the antenna increases, the number of sampling points needed to measure the near-field increases. Therefore, it is necessary to study other sampling methods in order to reduce the collection time of near-field data. This article discusses another sampling method and compares the far-field data it obtained with the data obtained by a general rectangular sampling method