Multiconductor cable coupling parameters

Experimental results obtained on a set of simple multiconductor cables with external electromagnetic shields are presented. The purpose of the experiment was to investigate the relationship between the internal cable geometry and the electromagnetic pulse coupling the cables. A set of five cables was selected for this investigation. The cables had an increasing number of internal conductors, from three to a maximum of eight, and similar construction and external shielding. A physical and electrical description of the tested cables is provided, followed by details of the experiment conducted. The experiment was performed on relatively long (30 to 150 m) lengths of cable using a radiating electromagnetic source and the Harry Diamond Laboratories continuous wave instrumentation system. A summary of multiconductor transmission line theory for shielded cables is provided