Advances in Radio Science www.adv-radio-sci.net 1684-9965 1684-9973 6 Kleinheubacher Berichte 2007 2008 10.5194/ars-6-307-2008 http://www.adv-radio-sci.net/6/307/2008/ http://www.adv-radio-sci.net/6/307/2008/ars-6-307-2008.html http://www.adv-radio-sci.net/6/307/2008/ars-6-307-2008.pdf 307 310 2008-05-26 Transient measurement results of pulse propagation in large GTEM cells H. Thye G. Armbrecht M. Koch Institut für Grundlagen der Elektrotechnik, Leibniz Universität Hannover, Germany Institut für Hochfrequenztechnik und Funksysteme, Leibniz Universität Hannover, Germany This contribution deals with the results of a transient measurement campaign incorporating ultra-wideband (UWB) pulses applied to a large GTEM cell. The main purpose is to analyse the distortion effects on such a feeding pulse when transformed into a field pulse inside the cells testing volume. We will investigate if the TEM field distribution is interfered by multimode propagation, that may lead to location-dependent pulse distortion and ringing. Finally, conclusions on the applicability of GTEM cells for standardized transient EMC measurements will be drawn. Camp, M., Garbe, H., and Nitsch, D.: Influence of the technology on the destruction effects of semiconductors by impact of EMP and UWB pulses, IEEE International Symposium on EMC 2002, pp. 87–92, USA, Minneapolis, 2002. Koch, M.: Analytische Feldberechnung in TEM-Zellen, Dissertation Uni Hannover, 1998. Wilson, P.: On Correlating TEM-cell and OATS Emission Measurements, IEEE Transactions on Electromagnetic Compatibility, 1995.