Time Base Correction Technique in Antenna Time Domain Planar Near Field Measurement

In the practice of antenna time domain planar near field measurement, the pulse generator's time base joggling can cause very big errors in measuring results. In this paper, a time base correction technique is developed to deal with this problem. Besides measuring channel, this technique adds a reference channel in measuring system, and uses the reference channel's time base joggling to correct the measuring channel's signal. The practical measuring results have proved this method's reliability.