Time-Domain Measurements of Broadband Antennas

One of the tasks of the European antenna centre of excellence (ACE) is to investigate the time domain systems for antenna measurements, especially for ultra-wide band (UWB) antennas. In this paper, different time-domain measurement systems from three different organisations within the ACE are described and discussed along with some measured results. Some discrepancies and problems are identified. These systems will be used to measure a number of different antennas from the participating organisations - it is aimed to produce a good practice guide for people to conduct broadband antenna measurements using a time-domain system (either network analyser based or pulse generator based). Measured results will be collected and compared and the final outcome will be reported at the European conference on antennas and propagation (EuCAP) 2007.