紧缩平面场扫描架系统研制

Development of Scanning Frame System for Compact Antenna Test Range Measurements

紧缩平面场 (CATR)是在较小的微波暗室里模拟远场的电磁环境 ,以行进各种天线的测量和研究 .其最终性能指标要由紧缩平面场扫描架评定 .根据紧缩平面场扫描测量原理 ,及其对扫描架平面度、直线度、定位精度及自动化程度的要求 ,研制了极坐标型紧缩场扫描架系统 ,通过采用高精度直线导轨、平面度微调方式和基于工业控制计算机的数字控制技术 ,达到了所要求的检测精度 ,满足了紧缩平面场扫描测量的要求 .

Compact antenna test range (CATR) is a system which simulate the far field electromagnetic environment in a smaller microwave dark room to measure and research diversiform antennas. Its ultimate performance criterion must be gauged with scanning frame. Based on the principal of compact antenna test range scanning measurements to meet the requirements of planeness, straightness, positioning accuracy and automation, a scanning frame system for compact antenna test range measurements was developed. With its high precision straight line slide guide and planeness minute adjustment, the system can supply all the requirements associated with compact antenna test range measurements.