摘要: This report describes the most important results of measurements, which have been performed with the rectangular planar near-field facility of the FEL-TNO laboratory from 1978 to 1989. Various types of antennas have been measured ... 展开 This report describes the most important results of measurements, which have been performed with the rectangular planar near-field facility of the FEL-TNO laboratory from 1978 to 1989. Various types of antennas have been measured in this period. The radiation (both sum and difference) patterns of antennas with narrow main beams can be determined with great accuracy. This is true as well for antennas, which have dimensions, that are equal or slightly larger than the measurement frame of the near field scanner, or that have a broad main beam in one plane. Besides, the near field measurement facility offers the possibility to detect defective radiating elements in a large array antenna very fast. If a parameter, like the frequency or the scan-direction of the main beam, can be changed very quickly, then we can determine more radiation patterns of an antenna during the time needed to perform one single near field measurement. The reported measurements give a good overview of the possibilities of the planar near field measurement technique. Keywords: Radar, Antenna, Antenna test, Measuring of electromagnetic field, Near field, Netherlands. (jhd) 收起